3128756874 has 48 divisors (see below), whose sum is σ = 6666458112. Its totient is φ = 975548544.

The previous prime is 3128756867. The next prime is 3128756879. The reversal of 3128756874 is 4786578213.

3128756874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3128756879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8168887 + ... + 8169269.

It is an arithmetic number, because the mean of its divisors is an integer number (138884544).

Almost surely, 2^3128756874 is an apocalyptic number.

3128756874 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3128756874 is an abundant number, since it is smaller than the sum of its proper divisors (3537701238).

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

3128756874 is a wasteful number, since it uses less digits than its factorization.

3128756874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 688 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 3128756874 is about 55935.2918469190. The cubic root of 3128756874 is about 1462.5945100149.

The spelling of 3128756874 in words is "three billion, one hundred twenty-eight million, seven hundred fifty-six thousand, eight hundred seventy-four".