87732566272 has 144 divisors (see below), whose sum is σ = 199555392960. Its totient is φ = 38160654336.

The previous prime is 87732566231. The next prime is 87732566287. The reversal of 87732566272 is 27266523778.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12453183 + ... + 12460225.

It is an arithmetic number, because the mean of its divisors is an integer number (1385801340).

Almost surely, 2^87732566272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87732566272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99777696480).

87732566272 is an abundant number, since it is smaller than the sum of its proper divisors (111822826688).

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

87732566272 is a wasteful number, since it uses less digits than its factorization.

87732566272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288 (or 7274 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 55.

The spelling of 87732566272 in words is "eighty-seven billion, seven hundred thirty-two million, five hundred sixty-six thousand, two hundred seventy-two".