3121586874 has 96 divisors (see below), whose sum is σ = 8309882880. Its totient is φ = 826933536.

The previous prime is 3121586861. The next prime is 3121586899. The reversal of 3121586874 is 4786851213.

It is a super-2 number, since 2×3121586874² = 19488609223858183752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98647 + ... + 126389.

It is an arithmetic number, because the mean of its divisors is an integer number (86561280).

Almost surely, 2^3121586874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121586874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4154941440).

3121586874 is an abundant number, since it is smaller than the sum of its proper divisors (5188296006).

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

3121586874 is a wasteful number, since it uses less digits than its factorization.

3121586874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27824 (or 27821 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 3121586874 is about 55871.1631702795. The cubic root of 3121586874 is about 1461.4764063558.

The spelling of 3121586874 in words is "three billion, one hundred twenty-one million, five hundred eighty-six thousand, eight hundred seventy-four".