51747379200 has 1152 divisors, whose sum is σ = 214973740800. Its totient is φ = 12091392000.

The previous prime is 51747379169. The next prime is 51747379231. The reversal of 51747379200 is 297374715.

51747379200 is a `hidden beast` number, since 5 + 1 + 74 + 7 + 379 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (51747379169) and next prime (51747379231).

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 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, 623462359 + ... + 623462441.

It is an arithmetic number, because the mean of its divisors is an integer number (186609150).

Almost surely, 2^51747379200 is an apocalyptic number.

51747379200 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 51747379200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107486870400).

51747379200 is an abundant number, since it is smaller than the sum of its proper divisors (163226361600).

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

51747379200 is a wasteful number, since it uses less digits than its factorization.

51747379200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 51747379200 in words is "fifty-one billion, seven hundred forty-seven million, three hundred seventy-nine thousand, two hundred".