874791197478 has 72 divisors (see below), whose sum is σ = 2205902835864. Its totient is φ = 249494805120.

The previous prime is 874791197471. The next prime is 874791197507.

874791197478 is a `hidden beast` number, since 8 + 7 + 479 + 1 + 19 + 74 + 78 = 666.

874791197478 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874791197471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11776176 + ... + 11850227.

It is an arithmetic number, because the mean of its divisors is an integer number (30637539387).

Almost surely, 2^874791197478 is an apocalyptic number.

874791197478 is an abundant number, since it is smaller than the sum of its proper divisors (1331111638386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

874791197478 is a wasteful number, since it uses less digits than its factorization.

874791197478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23626450 (or 23626436 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 72.

The spelling of 874791197478 in words is "eight hundred seventy-four billion, seven hundred ninety-one million, one hundred ninety-seven thousand, four hundred seventy-eight".