3102819912 has 64 divisors (see below), whose sum is σ = 8765064000. Its totient is φ = 1016739072.

The previous prime is 3102819901. The next prime is 3102819913. The reversal of 3102819912 is 2199182013.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3102819913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108993 + ... + 134480.

It is an arithmetic number, because the mean of its divisors is an integer number (136954125).

Almost surely, 2^3102819912 is an apocalyptic number.

It is an amenable number.

3102819912 is an abundant number, since it is smaller than the sum of its proper divisors (5662244088).

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

3102819912 is a wasteful number, since it uses less digits than its factorization.

3102819912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243547 (or 243537 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 3102819912 is about 55702.9614293531. The cubic root of 3102819912 is about 1458.5417215077.

The spelling of 3102819912 in words is "three billion, one hundred two million, eight hundred nineteen thousand, nine hundred twelve".