7687166172 has 48 divisors (see below), whose sum is σ = 20518525440. Its totient is φ = 2194252992.

The previous prime is 7687166171. The next prime is 7687166173. The reversal of 7687166172 is 2716617867.

It is an interprime number because it is at equal distance from previous prime (7687166171) and next prime (7687166173).

It is a super-2 number, since 2×7687166172² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687166171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46993 + ... + 132599.

It is an arithmetic number, because the mean of its divisors is an integer number (427469280).

Almost surely, 2^7687166172 is an apocalyptic number.

It is an amenable number.

7687166172 is an abundant number, since it is smaller than the sum of its proper divisors (12831359268).

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

7687166172 is a wasteful number, since it uses less digits than its factorization.

7687166172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86690 (or 86688 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 51.

The square root of 7687166172 is about 87676.4858556728. The cubic root of 7687166172 is about 1973.5831249437.

The spelling of 7687166172 in words is "seven billion, six hundred eighty-seven million, one hundred sixty-six thousand, one hundred seventy-two".