7456978879 has 16 divisors (see below), whose sum is σ = 8902084608. Its totient is φ = 6107409792.

The previous prime is 7456978871. The next prime is 7456978883. The reversal of 7456978879 is 9788796547.

It is a cyclic number.

It is not a de Polignac number, because 7456978879 - 2³ = 7456978871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7456978871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133594 + ... + 181000.

It is an arithmetic number, because the mean of its divisors is an integer number (556380288).

Almost surely, 2^7456978879 is an apocalyptic number.

7456978879 is a deficient number, since it is larger than the sum of its proper divisors (1445105729).

7456978879 is a wasteful number, since it uses less digits than its factorization.

7456978879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48414.

The product of its digits is 213373440, while the sum is 70.

The square root of 7456978879 is about 86353.8006054163. The cubic root of 7456978879 is about 1953.6839304531.

The spelling of 7456978879 in words is "seven billion, four hundred fifty-six million, nine hundred seventy-eight thousand, eight hundred seventy-nine".