5123905816 has 16 divisors (see below), whose sum is σ = 9764821440. Its totient is φ = 2519953440.

The previous prime is 5123905763. The next prime is 5123905823. The reversal of 5123905816 is 6185093215.

It is a super-2 number, since 2×5123905816² = 52508821622477251712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5249416 + ... + 5250391.

It is an arithmetic number, because the mean of its divisors is an integer number (610301340).

Almost surely, 2^5123905816 is an apocalyptic number.

It is an amenable number.

5123905816 is a deficient number, since it is larger than the sum of its proper divisors (4640915624).

5123905816 is a wasteful number, since it uses less digits than its factorization.

5123905816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499874 (or 10499870 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 5123905816 is about 71581.4627958943. The cubic root of 5123905816 is about 1723.9859127873.

The spelling of 5123905816 in words is "five billion, one hundred twenty-three million, nine hundred five thousand, eight hundred sixteen".