91903415952 has 80 divisors (see below), whose sum is σ = 239460923520. Its totient is φ = 30371721216.

The previous prime is 91903415873. The next prime is 91903415977. The reversal of 91903415952 is 25951430919.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 3103488 + ... + 3132960.

It is an arithmetic number, because the mean of its divisors is an integer number (2993261544).

Almost surely, 2^91903415952 is an apocalyptic number.

It is an amenable number.

91903415952 is an abundant number, since it is smaller than the sum of its proper divisors (147557507568).

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

91903415952 is a wasteful number, since it uses less digits than its factorization.

91903415952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30040 (or 30034 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 48.

The spelling of 91903415952 in words is "ninety-one billion, nine hundred three million, four hundred fifteen thousand, nine hundred fifty-two".