507620771654481 has 9 divisors (see below), whose sum is σ = 733230101132841. Its totient is φ = 338413802708772.

The previous prime is 507620771654441. The next prime is 507620771654539. The reversal of 507620771654481 is 184456177026705.

The square root of 507620771654481 is 22530441.

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

507620771654481 is a `hidden beast` number, since 5 + 0 + 7 + 6 + 2 + 0 + 7 + 7 + 1 + 6 + 544 + 81 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 507620771654481 - 2³³ = 507612181719889 is a prime.

It is a super-2 number, since 2×507620771654481² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (507620771654401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 63836250 + ... + 71346396.

Almost surely, 2^{507620771654481} is an apocalyptic number.

507620771654481 is the 22530441-st square number.

507620771654481 is the 11265221-st centered octagonal number.

It is an amenable number.

507620771654481 is a deficient number, since it is larger than the sum of its proper divisors (225609329478360).

507620771654481 is an frugal number, since it uses more digits than its factorization.

507620771654481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020300 (or 7510150 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 63.

The spelling of 507620771654481 in words is "five hundred seven trillion, six hundred twenty billion, seven hundred seventy-one million, six hundred fifty-four thousand, four hundred eighty-one".