51200664750 has 192 divisors, whose sum is σ = 143165183616. Its totient is φ = 13193280000.

The previous prime is 51200664701. The next prime is 51200664761. The reversal of 51200664750 is 5746600215.

It is a happy number.

51200664750 is a `hidden beast` number, since 5 + 1 + 2 + 0 + 0 + 6 + 647 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12568714 + ... + 12572786.

It is an arithmetic number, because the mean of its divisors is an integer number (745651998).

Almost surely, 2^51200664750 is an apocalyptic number.

51200664750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51200664750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71582591808).

51200664750 is an abundant number, since it is smaller than the sum of its proper divisors (91964518866).

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

51200664750 is a wasteful number, since it uses less digits than its factorization.

51200664750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 51200664750 in words is "fifty-one billion, two hundred million, six hundred sixty-four thousand, seven hundred fifty".