72958971015 has 48 divisors (see below), whose sum is σ = 144692847936. Its totient is φ = 33314688000.

The previous prime is 72958971013. The next prime is 72958971073. The reversal of 72958971015 is 51017985927.

It is not a de Polignac number, because 72958971015 - 2¹ = 72958971013 is a prime.

It is a super-2 number, since 2×72958971015² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72958971013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146065 + ... + 408965.

It is an arithmetic number, because the mean of its divisors is an integer number (3014434332).

Almost surely, 2^72958971015 is an apocalyptic number.

72958971015 is a deficient number, since it is larger than the sum of its proper divisors (71733876921).

72958971015 is a wasteful number, since it uses less digits than its factorization.

72958971015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263800 (or 263797 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 54.

The spelling of 72958971015 in words is "seventy-two billion, nine hundred fifty-eight million, nine hundred seventy-one thousand, fifteen".