51105120135 has 64 divisors (see below), whose sum is σ = 90021888000. Its totient is φ = 24641705088.

The previous prime is 51105120133. The next prime is 51105120139. The reversal of 51105120135 is 53102150115.

It is not a de Polignac number, because 51105120135 - 2¹ = 51105120133 is a prime.

It is a super-2 number, since 2×51105120135² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105120133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2895066 + ... + 2912664.

It is an arithmetic number, because the mean of its divisors is an integer number (1406592000).

Almost surely, 2^51105120135 is an apocalyptic number.

51105120135 is a deficient number, since it is larger than the sum of its proper divisors (38916767865).

51105120135 is a wasteful number, since it uses less digits than its factorization.

51105120135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18092.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 51105120135 in words is "fifty-one billion, one hundred five million, one hundred twenty thousand, one hundred thirty-five".