7117697478 has 16 divisors (see below), whose sum is σ = 14237338176. Its totient is φ = 2372241960.

The previous prime is 7117697471. The next prime is 7117697537. The reversal of 7117697478 is 8747967117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7117697471) 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, 30976 + ... + 123267.

It is an arithmetic number, because the mean of its divisors is an integer number (889833636).

Almost surely, 2^7117697478 is an apocalyptic number.

7117697478 is an abundant number, since it is smaller than the sum of its proper divisors (7119640698).

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

7117697478 is a wasteful number, since it uses less digits than its factorization.

7117697478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161939.

The product of its digits is 4148928, while the sum is 57.

The square root of 7117697478 is about 84366.4475843330. The cubic root of 7117697478 is about 1923.5929429255.

The spelling of 7117697478 in words is "seven billion, one hundred seventeen million, six hundred ninety-seven thousand, four hundred seventy-eight".