38955585756481 has 9 divisors (see below), whose sum is σ = 40723096991521. Its totient is φ = 37261727324932.

The previous prime is 38955585756469. The next prime is 38955585756509. The reversal of 38955585756481 is 18465758555983.

The square root of 38955585756481 is 6241441.

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

It is a de Polignac number, because none of the positive numbers 2^k-38955585756481 is a prime.

It is a super-2 number, since 2×38955585756481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38955585756421) 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, 143417460 + ... + 143688826.

Almost surely, 2^{38955585756481} is an apocalyptic number.

38955585756481 is the 6241441-st square number.

38955585756481 is the 3120721-st centered octagonal number.

It is an amenable number.

38955585756481 is a deficient number, since it is larger than the sum of its proper divisors (1767511235040).

38955585756481 is an frugal number, since it uses more digits than its factorization.

38955585756481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542780 (or 271390 counting only the distinct ones).

The product of its digits is 7257600000, while the sum is 79.

The spelling of 38955585756481 in words is "thirty-eight trillion, nine hundred fifty-five billion, five hundred eighty-five million, seven hundred fifty-six thousand, four hundred eighty-one".