2478111928 has 32 divisors (see below), whose sum is σ = 4688928000. Its totient is φ = 1227783040.

The previous prime is 2478111907. The next prime is 2478111929. The reversal of 2478111928 is 8291118742.

It is a super-2 number, since 2×2478111928² = 12282077455391754368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478111929) 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, 408018 + ... + 414046.

It is an arithmetic number, because the mean of its divisors is an integer number (146529000).

Almost surely, 2^2478111928 is an apocalyptic number.

It is an amenable number.

2478111928 is a deficient number, since it is larger than the sum of its proper divisors (2210816072).

2478111928 is a wasteful number, since it uses less digits than its factorization.

2478111928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495 (or 6491 counting only the distinct ones).

The product of its digits is 64512, while the sum is 43.

The square root of 2478111928 is about 49780.6380834959. The cubic root of 2478111928 is about 1353.2363010233.

The spelling of 2478111928 in words is "two billion, four hundred seventy-eight million, one hundred eleven thousand, nine hundred twenty-eight".