2493922878 has 32 divisors (see below), whose sum is σ = 5552248320. Its totient is φ = 829778040.

The previous prime is 2493922853. The next prime is 2493922891. The reversal of 2493922878 is 8782293942.

It is a happy number.

2493922878 is a `hidden beast` number, since 249 + 392 + 2 + 8 + 7 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12678 + ... + 71753.

It is an arithmetic number, because the mean of its divisors is an integer number (173507760).

Almost surely, 2^2493922878 is an apocalyptic number.

2493922878 is an abundant number, since it is smaller than the sum of its proper divisors (3058325442).

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

2493922878 is a wasteful number, since it uses less digits than its factorization.

2493922878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84989 (or 84983 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 2493922878 is about 49939.1918036325. The cubic root of 2493922878 is about 1356.1081928709.

The spelling of 2493922878 in words is "two billion, four hundred ninety-three million, nine hundred twenty-two thousand, eight hundred seventy-eight".