538638038587 has 16 divisors (see below), whose sum is σ = 593775594720. Its totient is φ = 484534656000.

The previous prime is 538638038563. The next prime is 538638038593. The reversal of 538638038587 is 785830836835.

It is a cyclic number.

It is not a de Polignac number, because 538638038587 - 2¹¹ = 538638036539 is a prime.

It is a super-2 number, since 2×538638038587² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538638038087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737739 + ... + 2024107.

It is an arithmetic number, because the mean of its divisors is an integer number (37110974670).

Almost surely, 2^538638038587 is an apocalyptic number.

538638038587 is a deficient number, since it is larger than the sum of its proper divisors (55137556133).

538638038587 is a wasteful number, since it uses less digits than its factorization.

538638038587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288174.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 538638038587 in words is "five hundred thirty-eight billion, six hundred thirty-eight million, thirty-eight thousand, five hundred eighty-seven".