91759259251 has 4 divisors (see below), whose sum is σ = 100101010104. Its totient is φ = 83417508400.

The previous prime is 91759259239. The next prime is 91759259311. The reversal of 91759259251 is 15295295719.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91759259251 - 2³³ = 83169324659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91759259192 and 91759259201.

It is not an unprimeable number, because it can be changed into a prime (91759259201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4170875410 + ... + 4170875431.

It is an arithmetic number, because the mean of its divisors is an integer number (25025252526).

Almost surely, 2^91759259251 is an apocalyptic number.

91759259251 is a deficient number, since it is larger than the sum of its proper divisors (8341750853).

91759259251 is a wasteful number, since it uses less digits than its factorization.

91759259251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341750852.

The product of its digits is 2551500, while the sum is 55.

The spelling of 91759259251 in words is "ninety-one billion, seven hundred fifty-nine million, two hundred fifty-nine thousand, two hundred fifty-one".