91976601474 has 24 divisors (see below), whose sum is σ = 211005145260. Its totient is φ = 28855404288.

The previous prime is 91976601473. The next prime is 91976601503. The reversal of 91976601474 is 47410667919.

It can be written as a sum of positive squares in 2 ways, for example, as 91843545249 + 133056225 = 303057^2 + 11535^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91976601474.

It is not an unprimeable number, because it can be changed into a prime (91976601473) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 150288259 + ... + 150288870.

Almost surely, 2^91976601474 is an apocalyptic number.

91976601474 is an abundant number, since it is smaller than the sum of its proper divisors (119028543786).

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

91976601474 is a wasteful number, since it uses less digits than its factorization.

91976601474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300577154 (or 300577151 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 91976601474 in words is "ninety-one billion, nine hundred seventy-six million, six hundred one thousand, four hundred seventy-four".