91766896004 has 36 divisors (see below), whose sum is σ = 190335941964. Its totient is φ = 38586614976.

The previous prime is 91766895953. The next prime is 91766896009. The reversal of 91766896004 is 40069866719.

It can be written as a sum of positive squares in 2 ways, for example, as 64211560000 + 27555336004 = 253400^2 + 165998^2 .

It is not an unprimeable number, because it can be changed into a prime (91766896009) 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, 4406579 + ... + 4427354.

It is an arithmetic number, because the mean of its divisors is an integer number (5287109499).

Almost surely, 2^91766896004 is an apocalyptic number.

It is an amenable number.

91766896004 is an abundant number, since it is smaller than the sum of its proper divisors (98569045960).

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

91766896004 is a wasteful number, since it uses less digits than its factorization.

91766896004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834004 (or 8833995 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 91766896004 in words is "ninety-one billion, seven hundred sixty-six million, eight hundred ninety-six thousand, four".