87972151624 has 16 divisors (see below), whose sum is σ = 188511753600. Its totient is φ = 37702350672.

The previous prime is 87972151621. The next prime is 87972151627. The reversal of 87972151624 is 42615127978.

It is an interprime number because it is at equal distance from previous prime (87972151621) and next prime (87972151627).

It is a super-2 number, since 2×87972151624² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87972151621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785465584 + ... + 785465695.

It is an arithmetic number, because the mean of its divisors is an integer number (11781984600).

Almost surely, 2^87972151624 is an apocalyptic number.

It is an amenable number.

87972151624 is an abundant number, since it is smaller than the sum of its proper divisors (100539601976).

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

87972151624 is a wasteful number, since it uses less digits than its factorization.

87972151624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570931292 (or 1570931288 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The spelling of 87972151624 in words is "eighty-seven billion, nine hundred seventy-two million, one hundred fifty-one thousand, six hundred twenty-four".