2574939138 has 16 divisors (see below), whose sum is σ = 5186929440. Its totient is φ = 852137856.

The previous prime is 2574939091. The next prime is 2574939139. The reversal of 2574939138 is 8319394752.

It is not an unprimeable number, because it can be changed into a prime (2574939139) 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, 1542895 + ... + 1544562.

It is an arithmetic number, because the mean of its divisors is an integer number (324183090).

Almost surely, 2^2574939138 is an apocalyptic number.

2574939138 is an abundant number, since it is smaller than the sum of its proper divisors (2611990302).

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

2574939138 is a wasteful number, since it uses less digits than its factorization.

2574939138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087601.

The product of its digits is 1632960, while the sum is 51.

The square root of 2574939138 is about 50743.8581308122. The cubic root of 2574939138 is about 1370.6365944118.

The spelling of 2574939138 in words is "two billion, five hundred seventy-four million, nine hundred thirty-nine thousand, one hundred thirty-eight".