6920778472 has 64 divisors (see below), whose sum is σ = 13913752320. Its totient is φ = 3215797248.

The previous prime is 6920778439. The next prime is 6920778521. The reversal of 6920778472 is 2748770296.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7802013 + ... + 7802899.

It is an arithmetic number, because the mean of its divisors is an integer number (217402380).

Almost surely, 2^6920778472 is an apocalyptic number.

It is an amenable number.

6920778472 is an abundant number, since it is smaller than the sum of its proper divisors (6992973848).

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

6920778472 is a wasteful number, since it uses less digits than its factorization.

6920778472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 6920778472 is about 83191.2163151856. The cubic root of 6920778472 is about 1905.6873422553.

The spelling of 6920778472 in words is "six billion, nine hundred twenty million, seven hundred seventy-eight thousand, four hundred seventy-two".