2567578938 has 32 divisors (see below), whose sum is σ = 5282286912. Its totient is φ = 831676800.

The previous prime is 2567578919. The next prime is 2567578943. The reversal of 2567578938 is 8398757652.

It is a super-2 number, since 2×2567578938² = 13184923205722415688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11883 + ... + 72638.

It is an arithmetic number, because the mean of its divisors is an integer number (165071466).

Almost surely, 2^2567578938 is an apocalyptic number.

2567578938 is an abundant number, since it is smaller than the sum of its proper divisors (2714707974).

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

2567578938 is a wasteful number, since it uses less digits than its factorization.

2567578938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84670.

The product of its digits is 25401600, while the sum is 60.

The square root of 2567578938 is about 50671.2831690692. The cubic root of 2567578938 is about 1369.3294066552.

The spelling of 2567578938 in words is "two billion, five hundred sixty-seven million, five hundred seventy-eight thousand, nine hundred thirty-eight".