1979482977481 has 9 divisors (see below), whose sum is σ = 1983629449269. Its totient is φ = 1975345164000.

The previous prime is 1979482977413. The next prime is 1979482977487. The reversal of 1979482977481 is 1847792849791.

It is a happy number.

The square root of 1979482977481 is 1406941.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 505152769081 + 1474330208400 = 710741^2 + 1214220^2 .

It is not a de Polignac number, because 1979482977481 - 2³⁵ = 1945123239113 is a prime.

It is a super-2 number, since 2×1979482977481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1979482977398 and 1979482977407.

It is not an unprimeable number, because it can be changed into a prime (1979482977487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 845570371 + ... + 845572711.

It is an arithmetic number, because the mean of its divisors is an integer number (220403272141).

Almost surely, 2^{1979482977481} is an apocalyptic number.

1979482977481 is the 1406941-st square number.

1979482977481 is the 703471-st centered octagonal number.

It is an amenable number.

1979482977481 is a deficient number, since it is larger than the sum of its proper divisors (4146471788).

1979482977481 is an frugal number, since it uses more digits than its factorization.

1979482977481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 2942 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 76.

The spelling of 1979482977481 in words is "one trillion, nine hundred seventy-nine billion, four hundred eighty-two million, nine hundred seventy-seven thousand, four hundred eighty-one".