51764428800 has 1152 divisors, whose sum is σ = 228187627200. Its totient is φ = 10947133440.

The previous prime is 51764428753. The next prime is 51764428813. The reversal of 51764428800 is 882446715.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 877363171 + ... + 877363229.

Almost surely, 2^51764428800 is an apocalyptic number.

51764428800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51764428800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114093813600).

51764428800 is an abundant number, since it is smaller than the sum of its proper divisors (176423198400).

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

51764428800 is a wasteful number, since it uses less digits than its factorization.

51764428800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 51764428800 in words is "fifty-one billion, seven hundred sixty-four million, four hundred twenty-eight thousand, eight hundred".