51154136154 has 24 divisors (see below), whose sum is σ = 120909776832. Its totient is φ = 15501253320.

The previous prime is 51154136153. The next prime is 51154136207. The reversal of 51154136154 is 45163145115.

51154136154 is a `hidden beast` number, since 5 + 1 + 1 + 541 + 3 + 61 + 54 = 666.

It is not an unprimeable number, because it can be changed into a prime (51154136153) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 129176914 + ... + 129177309.

It is an arithmetic number, because the mean of its divisors is an integer number (5037907368).

Almost surely, 2^51154136154 is an apocalyptic number.

51154136154 is an abundant number, since it is smaller than the sum of its proper divisors (69755640678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51154136154 is a wasteful number, since it uses less digits than its factorization.

51154136154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258354242 (or 258354239 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 51154136154 in words is "fifty-one billion, one hundred fifty-four million, one hundred thirty-six thousand, one hundred fifty-four".