1979482977407 has 8 divisors (see below), whose sum is σ = 2131787767200. Its totient is φ = 1827183454560.

The previous prime is 1979482977341. The next prime is 1979482977413. The reversal of 1979482977407 is 7047792849791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1979482977407 - 2¹² = 1979482973311 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518219 + ... + 2056092.

It is an arithmetic number, because the mean of its divisors is an integer number (266473470900).

Almost surely, 2^{1979482977407} is an apocalyptic number.

1979482977407 is a deficient number, since it is larger than the sum of its proper divisors (152304789793).

1979482977407 is a wasteful number, since it uses less digits than its factorization.

1979482977407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633473.

The product of its (nonzero) digits is 448084224, while the sum is 74.

Adding to 1979482977407 its sum of digits (74), we get a square (1979482977481 = 1406941²).

The spelling of 1979482977407 in words is "one trillion, nine hundred seventy-nine billion, four hundred eighty-two million, nine hundred seventy-seven thousand, four hundred seven".