72634662851140 has 48 divisors (see below), whose sum is σ = 164268418019328. Its totient is φ = 26818571320704.

The previous prime is 72634662851087. The next prime is 72634662851141. The reversal of 72634662851140 is 4115826643627.

It is not an unprimeable number, because it can be changed into a prime (72634662851141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16683229 + ... + 20581531.

It is an arithmetic number, because the mean of its divisors is an integer number (3422258708736).

Almost surely, 2^{72634662851140} is an apocalyptic number.

It is an amenable number.

72634662851140 is an abundant number, since it is smaller than the sum of its proper divisors (91633755168188).

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

72634662851140 is a wasteful number, since it uses less digits than its factorization.

72634662851140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969988 (or 3969986 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 72634662851140 in words is "seventy-two trillion, six hundred thirty-four billion, six hundred sixty-two million, eight hundred fifty-one thousand, one hundred forty".