87044356540 has 24 divisors (see below), whose sum is σ = 183097322352. Its totient is φ = 34759804800.

The previous prime is 87044356519. The next prime is 87044356541. The reversal of 87044356540 is 4565344078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87044356541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3608794 + ... + 3632833.

It is an arithmetic number, because the mean of its divisors is an integer number (7629055098).

Almost surely, 2^87044356540 is an apocalyptic number.

It is an amenable number.

87044356540 is an abundant number, since it is smaller than the sum of its proper divisors (96052965812).

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

87044356540 is a wasteful number, since it uses less digits than its factorization.

87044356540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242237 (or 7242235 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 87044356540 in words is "eighty-seven billion, forty-four million, three hundred fifty-six thousand, five hundred forty".