7912814117 has 8 divisors (see below), whose sum is σ = 8751803256. Its totient is φ = 7106726592.

The previous prime is 7912814083. The next prime is 7912814137. The reversal of 7912814117 is 7114182197.

It is a Cunningham number, because it is equal to 88954²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 32878756 + 7879935361 = 5734^2 + 88769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7912814117 - 2³² = 3617846821 is a prime.

It is a super-2 number, since 2×7912814117² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912814137) 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, 8224898 + ... + 8225859.

It is an arithmetic number, because the mean of its divisors is an integer number (1093975407).

Almost surely, 2^7912814117 is an apocalyptic number.

It is an amenable number.

7912814117 is a deficient number, since it is larger than the sum of its proper divisors (838989139).

7912814117 is a wasteful number, since it uses less digits than its factorization.

7912814117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16450807.

The product of its digits is 28224, while the sum is 41.

The square root of 7912814117 is about 88954.0000056209. Note that the first 5 decimals coincide. The cubic root of 7912814117 is about 1992.7079551028.

The spelling of 7912814117 in words is "seven billion, nine hundred twelve million, eight hundred fourteen thousand, one hundred seventeen".