51723423180 has 240 divisors, whose sum is σ = 190625982624. Its totient is φ = 11574420480.

The previous prime is 51723423163. The next prime is 51723423211. The reversal of 51723423180 is 8132432715.

51723423180 is a `hidden beast` number, since 51 + 7 + 2 + 3 + 423 + 180 = 666.

51723423180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51723423180² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120024 + ... + 343296.

Almost surely, 2^51723423180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51723423180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95312991312).

51723423180 is an abundant number, since it is smaller than the sum of its proper divisors (138902559444).

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

51723423180 is a wasteful number, since it uses less digits than its factorization.

51723423180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223318 (or 223307 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 51723423180 its reverse (8132432715), we get a palindrome (59855855895).

The spelling of 51723423180 in words is "fifty-one billion, seven hundred twenty-three million, four hundred twenty-three thousand, one hundred eighty".