91427018275 has 24 divisors (see below), whose sum is σ = 116270308224. Its totient is φ = 71274297600.

The previous prime is 91427018269. The next prime is 91427018281. The reversal of 91427018275 is 57281072419.

It is an interprime number because it is at equal distance from previous prime (91427018269) and next prime (91427018281).

It is not a de Polignac number, because 91427018275 - 2¹¹ = 91427016227 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 832897 + ... + 936253.

It is an arithmetic number, because the mean of its divisors is an integer number (4844596176).

Almost surely, 2^91427018275 is an apocalyptic number.

91427018275 is a deficient number, since it is larger than the sum of its proper divisors (24843289949).

91427018275 is a wasteful number, since it uses less digits than its factorization.

91427018275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104271 (or 104266 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 91427018275 in words is "ninety-one billion, four hundred twenty-seven million, eighteen thousand, two hundred seventy-five".