71512800738 has 16 divisors (see below), whose sum is σ = 149244106176. Its totient is φ = 22801182800.

The previous prime is 71512800719. The next prime is 71512800739. The reversal of 71512800738 is 83700821517.

It is a super-2 number, since 2×71512800738² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 71512800738.

It is not an unprimeable number, because it can be changed into a prime (71512800739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259104213 + ... + 259104488.

It is an arithmetic number, because the mean of its divisors is an integer number (9327756636).

Almost surely, 2^71512800738 is an apocalyptic number.

71512800738 is an abundant number, since it is smaller than the sum of its proper divisors (77731305438).

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

71512800738 is a wasteful number, since it uses less digits than its factorization.

71512800738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518208729.

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 71512800738 in words is "seventy-one billion, five hundred twelve million, eight hundred thousand, seven hundred thirty-eight".