51723485184 has 480 divisors, whose sum is σ = 172128983040. Its totient is φ = 13476298752.

The previous prime is 51723485131. The next prime is 51723485263. The reversal of 51723485184 is 48158432715.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216416137 + ... + 216416375.

It is an arithmetic number, because the mean of its divisors is an integer number (358602048).

Almost surely, 2^51723485184 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 51723485184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86064491520).

51723485184 is an abundant number, since it is smaller than the sum of its proper divisors (120405497856).

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

51723485184 is a wasteful number, since it uses less digits than its factorization.

51723485184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 305 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 51723485184 in words is "fifty-one billion, seven hundred twenty-three million, four hundred eighty-five thousand, one hundred eighty-four".