71513713126272 has 32 divisors (see below), whose sum is σ = 189958300492680. Its totient is φ = 23837904375296.

The previous prime is 71513713126213. The next prime is 71513713126321. The reversal of 71513713126272 is 27262131731517.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×71513713126272² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93116813583 + ... + 93116814350.

Almost surely, 2^{71513713126272} is an apocalyptic number.

It is an amenable number.

71513713126272 is an abundant number, since it is smaller than the sum of its proper divisors (118444587366408).

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

71513713126272 is a wasteful number, since it uses less digits than its factorization.

71513713126272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186233627950 (or 186233627938 counting only the distinct ones).

The product of its digits is 740880, while the sum is 48.

Adding to 71513713126272 its reverse (27262131731517), we get a palindrome (98775844857789).

The spelling of 71513713126272 in words is "seventy-one trillion, five hundred thirteen billion, seven hundred thirteen million, one hundred twenty-six thousand, two hundred seventy-two".