7447476680 has 128 divisors (see below), whose sum is σ = 19656000000. Its totient is φ = 2538466560.

The previous prime is 7447476679. The next prime is 7447476709. The reversal of 7447476680 is 866747447.

It is a happy number.

It is a hoax number, since the sum of its digits (53) 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 31 ways as a sum of consecutive naturals, for example, 2481821 + ... + 2484819.

It is an arithmetic number, because the mean of its divisors is an integer number (153562500).

Almost surely, 2^7447476680 is an apocalyptic number.

7447476680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7447476680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9828000000).

7447476680 is an abundant number, since it is smaller than the sum of its proper divisors (12208523320).

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

7447476680 is a wasteful number, since it uses less digits than its factorization.

7447476680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212 (or 3194 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 53.

The square root of 7447476680 is about 86298.7640699448. The cubic root of 7447476680 is about 1952.8537379278.

The spelling of 7447476680 in words is "seven billion, four hundred forty-seven million, four hundred seventy-six thousand, six hundred eighty".