7456221872 has 40 divisors (see below), whose sum is σ = 15764586240. Its totient is φ = 3388150080.

The previous prime is 7456221847. The next prime is 7456221881. The reversal of 7456221872 is 2781226547.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113029 + ... + 1119707.

It is an arithmetic number, because the mean of its divisors is an integer number (394114656).

Almost surely, 2^7456221872 is an apocalyptic number.

It is an amenable number.

7456221872 is an abundant number, since it is smaller than the sum of its proper divisors (8308364368).

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

7456221872 is a wasteful number, since it uses less digits than its factorization.

7456221872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041 (or 13035 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 7456221872 is about 86349.4173228749. The cubic root of 7456221872 is about 1953.6178177783.

The spelling of 7456221872 in words is "seven billion, four hundred fifty-six million, two hundred twenty-one thousand, eight hundred seventy-two".