7117897556 has 24 divisors (see below), whose sum is σ = 15529958976. Its totient is φ = 2773206720.

The previous prime is 7117897541. The next prime is 7117897571. The reversal of 7117897556 is 6557987117.

It is an interprime number because it is at equal distance from previous prime (7117897541) and next prime (7117897571).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11554721 + ... + 11555336.

It is an arithmetic number, because the mean of its divisors is an integer number (647081624).

Almost surely, 2^7117897556 is an apocalyptic number.

It is an amenable number.

7117897556 is an abundant number, since it is smaller than the sum of its proper divisors (8412061420).

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

7117897556 is a wasteful number, since it uses less digits than its factorization.

7117897556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23110079 (or 23110077 counting only the distinct ones).

The product of its digits is 3704400, while the sum is 56.

The square root of 7117897556 is about 84367.6333435993. The cubic root of 7117897556 is about 1923.6109667796.

The spelling of 7117897556 in words is "seven billion, one hundred seventeen million, eight hundred ninety-seven thousand, five hundred fifty-six".