51907570189 has 12 divisors (see below), whose sum is σ = 53112726108. Its totient is φ = 50729168000.

The previous prime is 51907570129. The next prime is 51907570237. The reversal of 51907570189 is 98107570915.

It is a happy number.

51907570189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30486906025 + 21420664164 = 174605^2 + 146358^2 .

It is not a de Polignac number, because 51907570189 - 2³³ = 43317635597 is a prime.

It is a super-2 number, since 2×51907570189² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51907570129) 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, 1531749 + ... + 1565269.

It is an arithmetic number, because the mean of its divisors is an integer number (4426060509).

Almost surely, 2^51907570189 is an apocalyptic number.

It is an amenable number.

51907570189 is a deficient number, since it is larger than the sum of its proper divisors (1205155919).

51907570189 is an equidigital number, since it uses as much as digits as its factorization.

51907570189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34316 (or 34269 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 52.

The spelling of 51907570189 in words is "fifty-one billion, nine hundred seven million, five hundred seventy thousand, one hundred eighty-nine".