91674354507 has 16 divisors (see below), whose sum is σ = 124967715840. Its totient is φ = 59751418112.

The previous prime is 91674354451. The next prime is 91674354511. The reversal of 91674354507 is 70545347619.

It is a cyclic number.

It is not a de Polignac number, because 91674354507 - 2¹⁶ = 91674288971 is a prime.

It is a super-2 number, since 2×91674354507² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91674354507.

It is not an unprimeable number, because it can be changed into a prime (91674354517) 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 15 ways as a sum of consecutive naturals, for example, 218943 + ... + 480920.

It is an arithmetic number, because the mean of its divisors is an integer number (7810482240).

Almost surely, 2^91674354507 is an apocalyptic number.

91674354507 is a deficient number, since it is larger than the sum of its proper divisors (33293361333).

91674354507 is a wasteful number, since it uses less digits than its factorization.

91674354507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700842.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 91674354507 in words is "ninety-one billion, six hundred seventy-four million, three hundred fifty-four thousand, five hundred seven".