7257716890 has 16 divisors (see below), whose sum is σ = 13065059232. Its totient is φ = 2902827024.

The previous prime is 7257716863. The next prime is 7257716897. The reversal of 7257716890 is 986177527.

It is a super-3 number, since 3×7257716890³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7257716897) 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, 118177 + ... + 168763.

It is an arithmetic number, because the mean of its divisors is an integer number (816566202).

Almost surely, 2^7257716890 is an apocalyptic number.

7257716890 is a deficient number, since it is larger than the sum of its proper divisors (5807342342).

7257716890 is a wasteful number, since it uses less digits than its factorization.

7257716890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64941.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 7257716890 is about 85192.2349161002. The cubic root of 7257716890 is about 1936.1247694458.

The spelling of 7257716890 in words is "seven billion, two hundred fifty-seven million, seven hundred sixteen thousand, eight hundred ninety".