6939156402 has 48 divisors (see below), whose sum is σ = 16016888160. Its totient is φ = 2164902336.

The previous prime is 6939156359. The next prime is 6939156437. The reversal of 6939156402 is 2046519396.

6939156402 is a `hidden beast` number, since 6 + 93 + 9 + 156 + 402 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93843 + ... + 150614.

It is an arithmetic number, because the mean of its divisors is an integer number (333685170).

Almost surely, 2^6939156402 is an apocalyptic number.

6939156402 is an abundant number, since it is smaller than the sum of its proper divisors (9077731758).

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

6939156402 is a wasteful number, since it uses less digits than its factorization.

6939156402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244567 (or 244564 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 6939156402 is about 83301.5990362730. The cubic root of 6939156402 is about 1907.3726841513.

The spelling of 6939156402 in words is "six billion, nine hundred thirty-nine million, one hundred fifty-six thousand, four hundred two".