2054978874 has 48 divisors (see below), whose sum is σ = 4798521000. Its totient is φ = 631830528.

The previous prime is 2054978867. The next prime is 2054978879. The reversal of 2054978874 is 4788794502.

It is a happy number.

2054978874 is a `hidden beast` number, since 2 + 0 + 5 + 497 + 88 + 74 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1900349649 + 154629225 = 43593^2 + 12435^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2054978874.

It is not an unprimeable number, because it can be changed into a prime (2054978879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 439702 + ... + 444350.

Almost surely, 2^2054978874 is an apocalyptic number.

2054978874 is an abundant number, since it is smaller than the sum of its proper divisors (2743542126).

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

2054978874 is a wasteful number, since it uses less digits than its factorization.

2054978874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The square root of 2054978874 is about 45331.8748123216. The cubic root of 2054978874 is about 1271.3616894992.

The spelling of 2054978874 in words is "two billion, fifty-four million, nine hundred seventy-eight thousand, eight hundred seventy-four".