6915863712 has 48 divisors (see below), whose sum is σ = 18181128672. Its totient is φ = 2301861120.

The previous prime is 6915863683. The next prime is 6915863761. The reversal of 6915863712 is 2173685196.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 11787 + ... + 118197.

It is an arithmetic number, because the mean of its divisors is an integer number (378773514).

Almost surely, 2^6915863712 is an apocalyptic number.

It is an amenable number.

6915863712 is an abundant number, since it is smaller than the sum of its proper divisors (11265264960).

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

6915863712 is a wasteful number, since it uses less digits than its factorization.

6915863712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107101 (or 107093 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 6915863712 is about 83161.6721332610. The cubic root of 6915863712 is about 1905.2361303043.

It can be divided in two parts, 69158 and 63712, that added together give a triangular number (132870 = T₅₁₅).

The spelling of 6915863712 in words is "six billion, nine hundred fifteen million, eight hundred sixty-three thousand, seven hundred twelve".