6888139371 has 16 divisors (see below), whose sum is σ = 10212095520. Its totient is φ = 4588742880.

The previous prime is 6888139267. The next prime is 6888139381. The reversal of 6888139371 is 1739318886.

6888139371 is a `hidden beast` number, since 68 + 88 + 139 + 371 = 666.

It is not a de Polignac number, because 6888139371 - 2⁷ = 6888139243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6888139381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55080 + ... + 129653.

It is an arithmetic number, because the mean of its divisors is an integer number (638255970).

Almost surely, 2^6888139371 is an apocalyptic number.

6888139371 is a deficient number, since it is larger than the sum of its proper divisors (3323956149).

6888139371 is a wasteful number, since it uses less digits than its factorization.

6888139371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186123 (or 186117 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 6888139371 is about 82994.8153260190. The cubic root of 6888139371 is about 1902.6868147235.

The spelling of 6888139371 in words is "six billion, eight hundred eighty-eight million, one hundred thirty-nine thousand, three hundred seventy-one".