2686608972 has 36 divisors (see below), whose sum is σ = 7042677096. Its totient is φ = 895536000.

The previous prime is 2686608959. The next prime is 2686608979. The reversal of 2686608972 is 2798066862.

2686608972 is a `hidden beast` number, since 26 + 8 + 6 + 608 + 9 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (2686608979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1381029 + ... + 1382972.

Almost surely, 2^2686608972 is an apocalyptic number.

It is an amenable number.

2686608972 is an abundant number, since it is smaller than the sum of its proper divisors (4356068124).

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

2686608972 is a wasteful number, since it uses less digits than its factorization.

2686608972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764020 (or 2764006 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 2686608972 is about 51832.5088337426. The cubic root of 2686608972 is about 1390.1707728006.

The spelling of 2686608972 in words is "two billion, six hundred eighty-six million, six hundred eight thousand, nine hundred seventy-two".