874596255991 has 4 divisors (see below), whose sum is σ = 874603452184. Its totient is φ = 874589059800.

The previous prime is 874596255977. The next prime is 874596255997. The reversal of 874596255991 is 199552695478.

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 874596255991 - 2³¹ = 872448772343 is a prime.

It is a super-2 number, since 2×874596255991² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 874596255991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874596255997) 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, 3412605 + ... + 3659926.

It is an arithmetic number, because the mean of its divisors is an integer number (218650863046).

Almost surely, 2^874596255991 is an apocalyptic number.

874596255991 is a deficient number, since it is larger than the sum of its proper divisors (7196193).

874596255991 is a wasteful number, since it uses less digits than its factorization.

874596255991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196192.

The product of its digits is 244944000, while the sum is 70.

The spelling of 874596255991 in words is "eight hundred seventy-four billion, five hundred ninety-six million, two hundred fifty-five thousand, nine hundred ninety-one".