51737213472 has 384 divisors, whose sum is σ = 168032600064. Its totient is φ = 13619155968.

The previous prime is 51737213419. The next prime is 51737213513. The reversal of 51737213472 is 27431273715.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48670413 + ... + 48671475.

It is an arithmetic number, because the mean of its divisors is an integer number (437584896).

Almost surely, 2^51737213472 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 51737213472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84016300032).

51737213472 is an abundant number, since it is smaller than the sum of its proper divisors (116295386592).

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

51737213472 is a wasteful number, since it uses less digits than its factorization.

51737213472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1212 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The spelling of 51737213472 in words is "fifty-one billion, seven hundred thirty-seven million, two hundred thirteen thousand, four hundred seventy-two".