874907779894 has 4 divisors (see below), whose sum is σ = 1312361669844. Its totient is φ = 437453889946.

The previous prime is 874907779883. The next prime is 874907779919. The reversal of 874907779894 is 498977709478.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 218726944972 + ... + 218726944975.

It is an arithmetic number, because the mean of its divisors is an integer number (328090417461).

Almost surely, 2^874907779894 is an apocalyptic number.

874907779894 is a deficient number, since it is larger than the sum of its proper divisors (437453889950).

874907779894 is a wasteful number, since it uses less digits than its factorization.

874907779894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437453889949.

The product of its (nonzero) digits is 1792336896, while the sum is 79.

The spelling of 874907779894 in words is "eight hundred seventy-four billion, nine hundred seven million, seven hundred seventy-nine thousand, eight hundred ninety-four".