7940694168 has 128 divisors (see below), whose sum is σ = 25329312000. Its totient is φ = 2279612160.

The previous prime is 7940694163. The next prime is 7940694193. The reversal of 7940694168 is 8614960497.

7940694168 is a `hidden beast` number, since 79 + 406 + 9 + 4 + 168 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940694161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42805 + ... + 133092.

It is an arithmetic number, because the mean of its divisors is an integer number (197885250).

Almost surely, 2^7940694168 is an apocalyptic number.

It is an amenable number.

7940694168 is an abundant number, since it is smaller than the sum of its proper divisors (17388617832).

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

7940694168 is a wasteful number, since it uses less digits than its factorization.

7940694168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175942 (or 175932 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 7940694168 is about 89110.5727060487. The cubic root of 7940694168 is about 1995.0455843505.

The spelling of 7940694168 in words is "seven billion, nine hundred forty million, six hundred ninety-four thousand, one hundred sixty-eight".