91453091560 has 16 divisors (see below), whose sum is σ = 205769456100. Its totient is φ = 36581236608.

The previous prime is 91453091531. The next prime is 91453091581. The reversal of 91453091560 is 6519035419.

It can be written as a sum of positive squares in 2 ways, for example, as 87458598756 + 3994492804 = 295734^2 + 63202^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143163605 + ... + 1143163684.

Almost surely, 2^91453091560 is an apocalyptic number.

It is an amenable number.

91453091560 is an abundant number, since it is smaller than the sum of its proper divisors (114316364540).

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

91453091560 is a wasteful number, since it uses less digits than its factorization.

91453091560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286327300 (or 2286327296 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 43.

The spelling of 91453091560 in words is "ninety-one billion, four hundred fifty-three million, ninety-one thousand, five hundred sixty".