91874675253 has 4 divisors (see below), whose sum is σ = 122499567008. Its totient is φ = 61249783500.

The previous prime is 91874675197. The next prime is 91874675273. The reversal of 91874675253 is 35257647819.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 91874675253 - 2²⁵ = 91841120821 is a prime.

It is a super-2 number, since 2×91874675253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91874675193 and 91874675202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91874675273) 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, 15312445873 + ... + 15312445878.

It is an arithmetic number, because the mean of its divisors is an integer number (30624891752).

Almost surely, 2^91874675253 is an apocalyptic number.

It is an amenable number.

91874675253 is a deficient number, since it is larger than the sum of its proper divisors (30624891755).

91874675253 is a wasteful number, since it uses less digits than its factorization.

91874675253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30624891754.

The product of its digits is 12700800, while the sum is 57.

The spelling of 91874675253 in words is "ninety-one billion, eight hundred seventy-four million, six hundred seventy-five thousand, two hundred fifty-three".