71734558038 has 64 divisors (see below), whose sum is σ = 168588048384. Its totient is φ = 20061216000.

The previous prime is 71734558013. The next prime is 71734558057. The reversal of 71734558038 is 83085543717.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7443483 + ... + 7453113.

It is an arithmetic number, because the mean of its divisors is an integer number (2634188256).

Almost surely, 2^71734558038 is an apocalyptic number.

71734558038 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

71734558038 is an abundant number, since it is smaller than the sum of its proper divisors (96853490346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71734558038 is a wasteful number, since it uses less digits than its factorization.

71734558038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 71734558038 in words is "seventy-one billion, seven hundred thirty-four million, five hundred fifty-eight thousand, thirty-eight".