51143338695 has 32 divisors (see below), whose sum is σ = 82775597760. Its totient is φ = 26961228800.

The previous prime is 51143338693. The next prime is 51143338709. The reversal of 51143338695 is 59683334115.

It is not a de Polignac number, because 51143338695 - 2¹ = 51143338693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51143338693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7628845 + ... + 7635545.

It is an arithmetic number, because the mean of its divisors is an integer number (2586737430).

Almost surely, 2^51143338695 is an apocalyptic number.

51143338695 is a deficient number, since it is larger than the sum of its proper divisors (31632259065).

51143338695 is a wasteful number, since it uses less digits than its factorization.

51143338695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12515.

The product of its digits is 1166400, while the sum is 48.

The spelling of 51143338695 in words is "fifty-one billion, one hundred forty-three million, three hundred thirty-eight thousand, six hundred ninety-five".