6840777672 has 64 divisors (see below), whose sum is σ = 19190361600. Its totient is φ = 2257675200.

The previous prime is 6840777661. The next prime is 6840777673. The reversal of 6840777672 is 2767770486.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6840777673) 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, 134968 + ... + 178599.

It is an arithmetic number, because the mean of its divisors is an integer number (299849400).

Almost surely, 2^6840777672 is an apocalyptic number.

It is an amenable number.

6840777672 is an abundant number, since it is smaller than the sum of its proper divisors (12349583928).

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

6840777672 is a wasteful number, since it uses less digits than its factorization.

6840777672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313683 (or 313673 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The square root of 6840777672 is about 82708.9939003008. The cubic root of 6840777672 is about 1898.3159289967.

The spelling of 6840777672 in words is "six billion, eight hundred forty million, seven hundred seventy-seven thousand, six hundred seventy-two".