87644153734452 has 36 divisors (see below), whose sum is σ = 253194221900256. Its totient is φ = 25041186781200.

The previous prime is 87644153734391. The next prime is 87644153734453. The reversal of 87644153734452 is 25443735144678.

87644153734452 is a `hidden beast` number, since 8 + 7 + 6 + 4 + 4 + 1 + 537 + 3 + 44 + 52 = 666.

87644153734452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 87644153734452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87644153734453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173897130174 + ... + 173897130677.

Almost surely, 2^{87644153734452} is an apocalyptic number.

It is an amenable number.

87644153734452 is an abundant number, since it is smaller than the sum of its proper divisors (165550068165804).

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

87644153734452 is a wasteful number, since it uses less digits than its factorization.

87644153734452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347794260868 (or 347794260863 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 63.

The spelling of 87644153734452 in words is "eighty-seven trillion, six hundred forty-four billion, one hundred fifty-three million, seven hundred thirty-four thousand, four hundred fifty-two".