87519518998 has 16 divisors (see below), whose sum is σ = 133136997840. Its totient is φ = 43143354496.

The previous prime is 87519518927. The next prime is 87519519023. The reversal of 87519518998 is 89981591578.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646711 + ... + 770242.

It is an arithmetic number, because the mean of its divisors is an integer number (8321062365).

Almost surely, 2^87519518998 is an apocalyptic number.

87519518998 is a deficient number, since it is larger than the sum of its proper divisors (45617478842).

87519518998 is a wasteful number, since it uses less digits than its factorization.

87519518998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417391.

The product of its digits is 65318400, while the sum is 70.

The spelling of 87519518998 in words is "eighty-seven billion, five hundred nineteen million, five hundred eighteen thousand, nine hundred ninety-eight".