7115657748 has 24 divisors (see below), whose sum is σ = 17008158720. Its totient is φ = 2314034880.

The previous prime is 7115657741. The next prime is 7115657753. The reversal of 7115657748 is 8477565117.

It is a self number, because there is not a number n which added to its sum of digits gives 7115657748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7115657741) 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, 7230868 + ... + 7231851.

It is an arithmetic number, because the mean of its divisors is an integer number (708673280).

Almost surely, 2^7115657748 is an apocalyptic number.

It is an amenable number.

7115657748 is an abundant number, since it is smaller than the sum of its proper divisors (9892500972).

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

7115657748 is a wasteful number, since it uses less digits than its factorization.

7115657748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14462767 (or 14462765 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 51.

The square root of 7115657748 is about 84354.3582039482. The cubic root of 7115657748 is about 1923.4091763304.

The spelling of 7115657748 in words is "seven billion, one hundred fifteen million, six hundred fifty-seven thousand, seven hundred forty-eight".