6938921108 has 12 divisors (see below), whose sum is σ = 13877842272. Its totient is φ = 2973823320.

The previous prime is 6938921081. The next prime is 6938921117. The reversal of 6938921108 is 8011298396.

6938921108 is an admirable number.

It is a super-2 number, since 2×6938921108² = 96297252286095895328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 123909278 + ... + 123909333.

It is an arithmetic number, because the mean of its divisors is an integer number (1156486856).

Almost surely, 2^6938921108 is an apocalyptic number.

It is an amenable number.

6938921108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6938921108 is a wasteful number, since it uses less digits than its factorization.

6938921108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247818622 (or 247818620 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 6938921108 is about 83300.1867224798. The cubic root of 6938921108 is about 1907.3511254106.

The spelling of 6938921108 in words is "six billion, nine hundred thirty-eight million, nine hundred twenty-one thousand, one hundred eight".