7456221873 has 12 divisors (see below), whose sum is σ = 10770920628. Its totient is φ = 4970435040.

The previous prime is 7456221847. The next prime is 7456221881. The reversal of 7456221873 is 3781226547.

7456221873 is a `hidden beast` number, since 7 + 4 + 5 + 622 + 18 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 690007824 + 6766214049 = 26268^2 + 82257^2 .

It is not a de Polignac number, because 7456221873 - 2⁵ = 7456221841 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7456221803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144283 + ... + 189023.

It is an arithmetic number, because the mean of its divisors is an integer number (897576719).

Almost surely, 2^7456221873 is an apocalyptic number.

It is an amenable number.

7456221873 is a deficient number, since it is larger than the sum of its proper divisors (3314698755).

7456221873 is a wasteful number, since it uses less digits than its factorization.

7456221873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63264 (or 63261 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 7456221873 is about 86349.4173286653. The cubic root of 7456221873 is about 1953.6178178656.

The spelling of 7456221873 in words is "seven billion, four hundred fifty-six million, two hundred twenty-one thousand, eight hundred seventy-three".