87691418627 has 2 divisors, whose sum is σ = 87691418628. Its totient is φ = 87691418626.

The previous prime is 87691418531. The next prime is 87691418653. The reversal of 87691418627 is 72681419678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87691418627 - 2²⁰ = 87690370051 is a prime.

It is not a weakly prime, because it can be changed into another prime (87691418687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43845709313 + 43845709314.

It is an arithmetic number, because the mean of its divisors is an integer number (43845709314).

Almost surely, 2^87691418627 is an apocalyptic number.

87691418627 is a deficient number, since it is larger than the sum of its proper divisors (1).

87691418627 is an equidigital number, since it uses as much as digits as its factorization.

87691418627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 59.

The spelling of 87691418627 in words is "eighty-seven billion, six hundred ninety-one million, four hundred eighteen thousand, six hundred twenty-seven".