3138120646870 has 16 divisors (see below), whose sum is σ = 6162127815888. Its totient is φ = 1141134780640.

The previous prime is 3138120646867. The next prime is 3138120646889. The reversal of 3138120646870 is 786460218313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14264184649 + ... + 14264184868.

It is an arithmetic number, because the mean of its divisors is an integer number (385132988493).

Almost surely, 2^{3138120646870} is an apocalyptic number.

3138120646870 is a deficient number, since it is larger than the sum of its proper divisors (3024007169018).

3138120646870 is a wasteful number, since it uses less digits than its factorization.

3138120646870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28528369535.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 3138120646870 in words is "three trillion, one hundred thirty-eight billion, one hundred twenty million, six hundred forty-six thousand, eight hundred seventy".