91464668487 has 12 divisors (see below), whose sum is σ = 136377427264. Its totient is φ = 59009463360.

The previous prime is 91464668483. The next prime is 91464668513. The reversal of 91464668487 is 78486646419.

91464668487 is a `hidden beast` number, since 9 + 14 + 6 + 466 + 84 + 87 = 666.

It is not a de Polignac number, because 91464668487 - 2² = 91464668483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91464668483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163914898 + ... + 163915455.

Almost surely, 2^91464668487 is an apocalyptic number.

91464668487 is a deficient number, since it is larger than the sum of its proper divisors (44912758777).

91464668487 is a wasteful number, since it uses less digits than its factorization.

91464668487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327830390 (or 327830387 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 91464668487 in words is "ninety-one billion, four hundred sixty-four million, six hundred sixty-eight thousand, four hundred eighty-seven".