51045131145 has 16 divisors (see below), whose sum is σ = 81675323712. Its totient is φ = 27223032000.

The previous prime is 51045131129. The next prime is 51045131161. The reversal of 51045131145 is 54113154015.

51045131145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51045131129) and next prime (51045131161).

It is not a de Polignac number, because 51045131145 - 2⁴ = 51045131129 is a prime.

It is a super-2 number, since 2×51045131145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500770 + ... + 594020.

It is an arithmetic number, because the mean of its divisors is an integer number (5104707732).

Almost surely, 2^51045131145 is an apocalyptic number.

It is an amenable number.

51045131145 is a deficient number, since it is larger than the sum of its proper divisors (30630192567).

51045131145 is a wasteful number, since it uses less digits than its factorization.

51045131145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129752.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 51045131145 in words is "fifty-one billion, forty-five million, one hundred thirty-one thousand, one hundred forty-five".