87615913945 has 8 divisors (see below), whose sum is σ = 120158967744. Its totient is φ = 60079483824.

The previous prime is 87615913933. The next prime is 87615914011. The reversal of 87615913945 is 54931951678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87615913945 - 2⁷ = 87615913817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87615913945.

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, 1251655879 + ... + 1251655948.

It is an arithmetic number, because the mean of its divisors is an integer number (15019870968).

Almost surely, 2^87615913945 is an apocalyptic number.

It is an amenable number.

87615913945 is a deficient number, since it is larger than the sum of its proper divisors (32543053799).

87615913945 is a wasteful number, since it uses less digits than its factorization.

87615913945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503311839.

The product of its digits is 8164800, while the sum is 58.

The spelling of 87615913945 in words is "eighty-seven billion, six hundred fifteen million, nine hundred thirteen thousand, nine hundred forty-five".