7420731968 has 28 divisors (see below), whose sum is σ = 15858248700. Its totient is φ = 3424952832.

The previous prime is 7420731959. The next prime is 7420731971. The reversal of 7420731968 is 8691370247.

It can be written as a sum of positive squares in 2 ways, for example, as 724255744 + 6696476224 = 26912^2 + 81832^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4458743 + ... + 4460406.

It is an arithmetic number, because the mean of its divisors is an integer number (566366025).

Almost surely, 2^7420731968 is an apocalyptic number.

It is an amenable number.

7420731968 is an abundant number, since it is smaller than the sum of its proper divisors (8437516732).

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

7420731968 is a wasteful number, since it uses less digits than its factorization.

7420731968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919174 (or 8919164 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 7420731968 is about 86143.6705045704. The cubic root of 7420731968 is about 1950.5132962128.

The spelling of 7420731968 in words is "seven billion, four hundred twenty million, seven hundred thirty-one thousand, nine hundred sixty-eight".