51142141965 has 16 divisors (see below), whose sum is σ = 84467022336. Its totient is φ = 26395944000.

The previous prime is 51142141949. The next prime is 51142141979. The reversal of 51142141965 is 56914124115.

It is not a de Polignac number, because 51142141965 - 2⁴ = 51142141949 is a prime.

It is a super-2 number, since 2×51142141965² (a number of 22 digits) 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54991086 + ... + 54992015.

It is an arithmetic number, because the mean of its divisors is an integer number (5279188896).

Almost surely, 2^51142141965 is an apocalyptic number.

It is an amenable number.

51142141965 is a deficient number, since it is larger than the sum of its proper divisors (33324880371).

51142141965 is a wasteful number, since it uses less digits than its factorization.

51142141965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109983140.

The product of its digits is 43200, while the sum is 39.

The spelling of 51142141965 in words is "fifty-one billion, one hundred forty-two million, one hundred forty-one thousand, nine hundred sixty-five".