51748934292 has 120 divisors (see below), whose sum is σ = 147664706112. Its totient is φ = 15672528000.

The previous prime is 51748934273. The next prime is 51748934309. The reversal of 51748934292 is 29243984715.

51748934292 is a `hidden beast` number, since 517 + 4 + 8 + 9 + 34 + 2 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8917792 + ... + 8923592.

Almost surely, 2^51748934292 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 51748934292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73832353056).

51748934292 is an abundant number, since it is smaller than the sum of its proper divisors (95915771820).

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

51748934292 is a wasteful number, since it uses less digits than its factorization.

51748934292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331 (or 8320 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 51748934292 in words is "fifty-one billion, seven hundred forty-eight million, nine hundred thirty-four thousand, two hundred ninety-two".