2151776682 has 48 divisors (see below), whose sum is σ = 5090567040. Its totient is φ = 651470400.

The previous prime is 2151776659. The next prime is 2151776747. The reversal of 2151776682 is 2866771512.

2151776682 is a `hidden beast` number, since 2 + 1 + 517 + 76 + 68 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251007 + ... + 259437.

It is an arithmetic number, because the mean of its divisors is an integer number (106053480).

Almost surely, 2^2151776682 is an apocalyptic number.

2151776682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2151776682 is an abundant number, since it is smaller than the sum of its proper divisors (2938790358).

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

2151776682 is a wasteful number, since it uses less digits than its factorization.

2151776682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739 (or 9736 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 2151776682 is about 46387.2469758661. The cubic root of 2151776682 is about 1291.0183017831.

The spelling of 2151776682 in words is "two billion, one hundred fifty-one million, seven hundred seventy-six thousand, six hundred eighty-two".