2129982774 has 16 divisors (see below), whose sum is σ = 4375100208. Its totient is φ = 690805152.

The previous prime is 2129982761. The next prime is 2129982779. The reversal of 2129982774 is 4772899212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129982779) 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, 4797037 + ... + 4797480.

It is an arithmetic number, because the mean of its divisors is an integer number (273443763).

Almost surely, 2^2129982774 is an apocalyptic number.

2129982774 is an abundant number, since it is smaller than the sum of its proper divisors (2245117434).

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

2129982774 is a wasteful number, since it uses less digits than its factorization.

2129982774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9594559.

The product of its digits is 1016064, while the sum is 51.

The square root of 2129982774 is about 46151.7364137039. The cubic root of 2129982774 is about 1286.6448827004.

The spelling of 2129982774 in words is "two billion, one hundred twenty-nine million, nine hundred eighty-two thousand, seven hundred seventy-four".