6885136242 has 48 divisors (see below), whose sum is σ = 15629900832. Its totient is φ = 2271369600.

The previous prime is 6885136211. The next prime is 6885136277. The reversal of 6885136242 is 2426315886.

6885136242 is a `hidden beast` number, since 6 + 8 + 8 + 5 + 13 + 624 + 2 = 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, 25884 + ... + 120167.

It is an arithmetic number, because the mean of its divisors is an integer number (325622934).

Almost surely, 2^6885136242 is an apocalyptic number.

6885136242 is an abundant number, since it is smaller than the sum of its proper divisors (8744764590).

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

6885136242 is a wasteful number, since it uses less digits than its factorization.

6885136242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146165 (or 146153 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 6885136242 is about 82976.7210848922. The cubic root of 6885136242 is about 1902.4102598972.

The spelling of 6885136242 in words is "six billion, eight hundred eighty-five million, one hundred thirty-six thousand, two hundred forty-two".