87890715158 has 8 divisors (see below), whose sum is σ = 135399209952. Its totient is φ = 42757645176.

The previous prime is 87890715149. The next prime is 87890715167. The reversal of 87890715158 is 85151709878.

It is an interprime number because it is at equal distance from previous prime (87890715149) and next prime (87890715167).

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

It is a junction number, because it is equal to n+sod(n) for n = 87890715097 and 87890715106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593856110 + ... + 593856257.

It is an arithmetic number, because the mean of its divisors is an integer number (16924901244).

Almost surely, 2^87890715158 is an apocalyptic number.

87890715158 is a deficient number, since it is larger than the sum of its proper divisors (47508494794).

87890715158 is a wasteful number, since it uses less digits than its factorization.

87890715158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187712406.

The product of its (nonzero) digits is 5644800, while the sum is 59.

The spelling of 87890715158 in words is "eighty-seven billion, eight hundred ninety million, seven hundred fifteen thousand, one hundred fifty-eight".