7257710722 has 16 divisors (see below), whose sum is σ = 10998099000. Its totient is φ = 3591702400.

The previous prime is 7257710701. The next prime is 7257710729. The reversal of 7257710722 is 2270177527.

It can be written as a sum of positive squares in 4 ways, for example, as 7185783361 + 71927361 = 84769^2 + 8481^2 .

It is a super-2 number, since 2×7257710722² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7257710729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983904 + ... + 991252.

Almost surely, 2^7257710722 is an apocalyptic number.

7257710722 is a deficient number, since it is larger than the sum of its proper divisors (3740388278).

7257710722 is a wasteful number, since it uses less digits than its factorization.

7257710722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12341.

The product of its (nonzero) digits is 96040, while the sum is 40.

The square root of 7257710722 is about 85192.1987156101. The cubic root of 7257710722 is about 1936.1242209712.

The spelling of 7257710722 in words is "seven billion, two hundred fifty-seven million, seven hundred ten thousand, seven hundred twenty-two".