6940900856 has 16 divisors (see below), whose sum is σ = 13113536040. Its totient is φ = 3443957920.

The previous prime is 6940900843. The next prime is 6940900867. The reversal of 6940900856 is 6580090496.

It is a super-2 number, since 2×6940900856² = 96352209385643065472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6940900856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3310451 + ... + 3312546.

Almost surely, 2^6940900856 is an apocalyptic number.

It is an amenable number.

6940900856 is a deficient number, since it is larger than the sum of its proper divisors (6172635184).

6940900856 is a wasteful number, since it uses less digits than its factorization.

6940900856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623134 (or 6623130 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 6940900856 is about 83312.0690896583. The cubic root of 6940900856 is about 1907.5325040167.

The spelling of 6940900856 in words is "six billion, nine hundred forty million, nine hundred thousand, eight hundred fifty-six".