91954595766 has 16 divisors (see below), whose sum is σ = 200628209088. Its totient is φ = 27865029000.

The previous prime is 91954595743. The next prime is 91954595771. The reversal of 91954595766 is 66759545919.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 1393251451 = 91954595766 / (9 + 1 + 9 + 5 + 4 + 5 + 9 + 5 + 7 + 6 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91954595697 and 91954595706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696625660 + ... + 696625791.

It is an arithmetic number, because the mean of its divisors is an integer number (12539263068).

Almost surely, 2^91954595766 is an apocalyptic number.

91954595766 is an abundant number, since it is smaller than the sum of its proper divisors (108673613322).

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

91954595766 is a wasteful number, since it uses less digits than its factorization.

91954595766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393251467.

The product of its digits is 91854000, while the sum is 66.

The spelling of 91954595766 in words is "ninety-one billion, nine hundred fifty-four million, five hundred ninety-five thousand, seven hundred sixty-six".