5111954838 has 24 divisors (see below), whose sum is σ = 11557464048. Its totient is φ = 1629898512.

The previous prime is 5111954819. The next prime is 5111954849. The reversal of 5111954838 is 8384591115.

5111954838 is a `hidden beast` number, since 51 + 119 + 5 + 483 + 8 = 666.

It is a super-2 number, since 2×5111954838² = 52264164531503212488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5111954793 and 5111954802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6173445 + ... + 6174272.

It is an arithmetic number, because the mean of its divisors is an integer number (481561002).

Almost surely, 2^5111954838 is an apocalyptic number.

5111954838 is an abundant number, since it is smaller than the sum of its proper divisors (6445509210).

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

5111954838 is a wasteful number, since it uses less digits than its factorization.

5111954838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12347748 (or 12347745 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 5111954838 is about 71497.9359002762. The cubic root of 5111954838 is about 1722.6445300212.

The spelling of 5111954838 in words is "five billion, one hundred eleven million, nine hundred fifty-four thousand, eight hundred thirty-eight".