2649311874 has 48 divisors (see below), whose sum is σ = 6493949280. Its totient is φ = 802820160.

The previous prime is 2649311857. The next prime is 2649311887. The reversal of 2649311874 is 4781139462.

2649311874 is a `hidden beast` number, since 264 + 9 + 311 + 8 + 74 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 242439 + ... + 253130.

It is an arithmetic number, because the mean of its divisors is an integer number (135290610).

Almost surely, 2^2649311874 is an apocalyptic number.

2649311874 is an abundant number, since it is smaller than the sum of its proper divisors (3844637406).

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

2649311874 is a wasteful number, since it uses less digits than its factorization.

2649311874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495597 (or 495585 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2649311874 is about 51471.4666004380. The cubic root of 2649311874 is about 1383.7077136922.

The spelling of 2649311874 in words is "two billion, six hundred forty-nine million, three hundred eleven thousand, eight hundred seventy-four".