51179023800 has 240 divisors, whose sum is σ = 181536996960. Its totient is φ = 13357163520.

The previous prime is 51179023799. The next prime is 51179023807. The reversal of 51179023800 is 832097115.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51179023807) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 727792 + ... + 795008.

It is an arithmetic number, because the mean of its divisors is an integer number (756404154).

Almost surely, 2^51179023800 is an apocalyptic number.

51179023800 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 51179023800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90768498480).

51179023800 is an abundant number, since it is smaller than the sum of its proper divisors (130357973160).

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

51179023800 is a wasteful number, since it uses less digits than its factorization.

51179023800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67292 (or 67274 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 51179023800 in words is "fifty-one billion, one hundred seventy-nine million, twenty-three thousand, eight hundred".