538638755031 has 48 divisors (see below), whose sum is σ = 850223861760. Its totient is φ = 326604882240.

The previous prime is 538638754991. The next prime is 538638755071. The reversal of 538638755031 is 130557836835.

538638755031 is a `hidden beast` number, since 5 + 3 + 8 + 6 + 3 + 87 + 550 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (538638754991) and next prime (538638755071).

It is not a de Polignac number, because 538638755031 - 2⁶ = 538638754967 is a prime.

It is a super-2 number, since 2×538638755031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538638755071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4478970 + ... + 4597656.

It is an arithmetic number, because the mean of its divisors is an integer number (17712997120).

Almost surely, 2^538638755031 is an apocalyptic number.

538638755031 is a deficient number, since it is larger than the sum of its proper divisors (311585106729).

538638755031 is a wasteful number, since it uses less digits than its factorization.

538638755031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119276 (or 119273 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 538638755031 in words is "five hundred thirty-eight billion, six hundred thirty-eight million, seven hundred fifty-five thousand, thirty-one".