3129746912 has 24 divisors (see below), whose sum is σ = 6169174200. Its totient is φ = 1562972544.

The previous prime is 3129746911. The next prime is 3129746933. The reversal of 3129746912 is 2196479213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129746911) 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, 32462 + ... + 85517.

It is an arithmetic number, because the mean of its divisors is an integer number (257048925).

Almost surely, 2^3129746912 is an apocalyptic number.

3129746912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3129746912 is a deficient number, since it is larger than the sum of its proper divisors (3039427288).

3129746912 is a wasteful number, since it uses less digits than its factorization.

3129746912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118818 (or 118810 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 3129746912 is about 55944.1409979633. The cubic root of 3129746912 is about 1462.7487641905.

The spelling of 3129746912 in words is "three billion, one hundred twenty-nine million, seven hundred forty-six thousand, nine hundred twelve".