1478877320281 has 3 divisors (see below), whose sum is σ = 1478878536373. Its totient is φ = 1478876104190.

The previous prime is 1478877320273. The next prime is 1478877320311. The reversal of 1478877320281 is 1820237788741.

The square root of 1478877320281 is 1216091.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1478877320281 - 2³ = 1478877320273 is a prime.

It is a super-2 number, since 2×1478877320281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478877320681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 608046 + ... + 1824136.

Almost surely, 2^{1478877320281} is an apocalyptic number.

1478877320281 is the 1216091-st square number.

1478877320281 is the 608046-th centered octagonal number.

It is an amenable number.

1478877320281 is a deficient number, since it is larger than the sum of its proper divisors (1216092).

1478877320281 is an frugal number, since it uses more digits than its factorization.

1478877320281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432182 (or 1216091 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 58.

The spelling of 1478877320281 in words is "one trillion, four hundred seventy-eight billion, eight hundred seventy-seven million, three hundred twenty thousand, two hundred eighty-one".