2570867878 has 4 divisors (see below), whose sum is σ = 3856301820. Its totient is φ = 1285433938.

The previous prime is 2570867833. The next prime is 2570867881. The reversal of 2570867878 is 8787680752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2570867878² = 13218723292264445768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642716968 + ... + 642716971.

It is an arithmetic number, because the mean of its divisors is an integer number (964075455).

Almost surely, 2^2570867878 is an apocalyptic number.

2570867878 is a deficient number, since it is larger than the sum of its proper divisors (1285433942).

2570867878 is a wasteful number, since it uses less digits than its factorization.

2570867878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285433941.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The square root of 2570867878 is about 50703.7264705465. The cubic root of 2570867878 is about 1369.9138379755.

The spelling of 2570867878 in words is "two billion, five hundred seventy million, eight hundred sixty-seven thousand, eight hundred seventy-eight".