87081203751816 has 64 divisors (see below), whose sum is σ = 218516031486720. Its totient is φ = 28918706057280.

The previous prime is 87081203751809. The next prime is 87081203751821. The reversal of 87081203751816 is 61815730218078.

It is a happy number.

87081203751816 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

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, 32699031 + ... + 35261721.

It is an arithmetic number, because the mean of its divisors is an integer number (3414312991980).

Almost surely, 2^{87081203751816} is an apocalyptic number.

It is an amenable number.

87081203751816 is an abundant number, since it is smaller than the sum of its proper divisors (131434827734904).

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

87081203751816 is a wasteful number, since it uses less digits than its factorization.

87081203751816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567986 (or 2567982 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 57.

The spelling of 87081203751816 in words is "eighty-seven trillion, eighty-one billion, two hundred three million, seven hundred fifty-one thousand, eight hundred sixteen".