5011812857 has 12 divisors (see below), whose sum is σ = 5507561580. Its totient is φ = 4554337536.

The previous prime is 5011812847. The next prime is 5011812877. The reversal of 5011812857 is 7582181105.

It can be written as a sum of positive squares in 6 ways, for example, as 8231161 + 5003581696 = 2869^2 + 70736^2 .

It is not a de Polignac number, because 5011812857 - 2²⁶ = 4944703993 is a prime.

It is a super-2 number, since 2×5011812857² = 50236536227181004898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5011812857.

It is not an unprimeable number, because it can be changed into a prime (5011812847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290618 + ... + 307379.

It is an arithmetic number, because the mean of its divisors is an integer number (458963465).

Almost surely, 2^5011812857 is an apocalyptic number.

It is an amenable number.

5011812857 is a deficient number, since it is larger than the sum of its proper divisors (495748723).

5011812857 is a wasteful number, since it uses less digits than its factorization.

5011812857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598060 (or 598043 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 38.

The square root of 5011812857 is about 70794.1583536382. The cubic root of 5011812857 is about 1711.3215343055.

The spelling of 5011812857 in words is "five billion, eleven million, eight hundred twelve thousand, eight hundred fifty-seven".