71138232620 has 96 divisors (see below), whose sum is σ = 186080606208. Its totient is φ = 22242776832.

The previous prime is 71138232541. The next prime is 71138232643. The reversal of 71138232620 is 2623283117.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84404 + ... + 386523.

It is an arithmetic number, because the mean of its divisors is an integer number (1938339648).

Almost surely, 2^71138232620 is an apocalyptic number.

71138232620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71138232620 is an abundant number, since it is smaller than the sum of its proper divisors (114942373588).

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

71138232620 is a wasteful number, since it uses less digits than its factorization.

71138232620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471039 (or 471037 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 71138232620 in words is "seventy-one billion, one hundred thirty-eight million, two hundred thirty-two thousand, six hundred twenty".