2538113878 has 4 divisors (see below), whose sum is σ = 3807170820. Its totient is φ = 1269056938.

The previous prime is 2538113813. The next prime is 2538113887. The reversal of 2538113878 is 8783118352.

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

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, 634528468 + ... + 634528471.

It is an arithmetic number, because the mean of its divisors is an integer number (951792705).

Almost surely, 2^2538113878 is an apocalyptic number.

2538113878 is a deficient number, since it is larger than the sum of its proper divisors (1269056942).

2538113878 is a wasteful number, since it uses less digits than its factorization.

2538113878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269056941.

The product of its digits is 322560, while the sum is 46.

The square root of 2538113878 is about 50379.6970812648. The cubic root of 2538113878 is about 1364.0711841116.

The spelling of 2538113878 in words is "two billion, five hundred thirty-eight million, one hundred thirteen thousand, eight hundred seventy-eight".