7678945790 has 32 divisors (see below), whose sum is σ = 13880613600. Its totient is φ = 3058602624.

The previous prime is 7678945783. The next prime is 7678945829. The reversal of 7678945790 is 975498767.

It is a congruent number.

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, 4455869 + ... + 4457591.

It is an arithmetic number, because the mean of its divisors is an integer number (433769175).

Almost surely, 2^7678945790 is an apocalyptic number.

7678945790 is a deficient number, since it is larger than the sum of its proper divisors (6201667810).

7678945790 is a wasteful number, since it uses less digits than its factorization.

7678945790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356.

The product of its (nonzero) digits is 26671680, while the sum is 62.

The square root of 7678945790 is about 87629.5942590173. The cubic root of 7678945790 is about 1972.8793808394.

The spelling of 7678945790 in words is "seven billion, six hundred seventy-eight million, nine hundred forty-five thousand, seven hundred ninety".