7472574721 has 2 divisors, whose sum is σ = 7472574722. Its totient is φ = 7472574720.

The previous prime is 7472574709. The next prime is 7472574779. The reversal of 7472574721 is 1274752747.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5041000000 + 2431574721 = 71000^2 + 49311^2 .

It is a cyclic number.

It is not a de Polignac number, because 7472574721 - 2³¹ = 5325091073 is a prime.

It is not a weakly prime, because it can be changed into another prime (7472571721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3736287360 + 3736287361.

It is an arithmetic number, because the mean of its divisors is an integer number (3736287361).

Almost surely, 2^7472574721 is an apocalyptic number.

It is an amenable number.

7472574721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7472574721 is an equidigital number, since it uses as much as digits as its factorization.

7472574721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768320, while the sum is 46.

The square root of 7472574721 is about 86444.0554404986. The cubic root of 7472574721 is about 1955.0449878559.

The spelling of 7472574721 in words is "seven billion, four hundred seventy-two million, five hundred seventy-four thousand, seven hundred twenty-one".