51724324157 has 16 divisors (see below), whose sum is σ = 58888494720. Its totient is φ = 44971080000.

The previous prime is 51724324153. The next prime is 51724324187. The reversal of 51724324157 is 75142342715.

It is not a de Polignac number, because 51724324157 - 2² = 51724324153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51724324153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647019 + ... + 2666487.

It is an arithmetic number, because the mean of its divisors is an integer number (3680530920).

Almost surely, 2^51724324157 is an apocalyptic number.

It is an amenable number.

51724324157 is a deficient number, since it is larger than the sum of its proper divisors (7164170563).

51724324157 is a wasteful number, since it uses less digits than its factorization.

51724324157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30004.

The product of its digits is 235200, while the sum is 41.

The spelling of 51724324157 in words is "fifty-one billion, seven hundred twenty-four million, three hundred twenty-four thousand, one hundred fifty-seven".