38994555555 has 12 divisors (see below), whose sum is σ = 67590563040. Its totient is φ = 20797096272.

The previous prime is 38994555529. The next prime is 38994555571. The reversal of 38994555555 is 55555549983.

38994555555 is a `hidden beast` number, since 3 + 89 + 9 + 455 + 55 + 55 = 666.

It is not a de Polignac number, because 38994555555 - 2⁶ = 38994555491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38994555492 and 38994555501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433272795 + ... + 433272884.

It is an arithmetic number, because the mean of its divisors is an integer number (5632546920).

Almost surely, 2^38994555555 is an apocalyptic number.

38994555555 is a deficient number, since it is larger than the sum of its proper divisors (28596007485).

38994555555 is a wasteful number, since it uses less digits than its factorization.

38994555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866545690 (or 866545687 counting only the distinct ones).

The product of its digits is 121500000, while the sum is 63.

The spelling of 38994555555 in words is "thirty-eight billion, nine hundred ninety-four million, five hundred fifty-five thousand, five hundred fifty-five".