51428442736 has 160 divisors (see below), whose sum is σ = 116792524800. Its totient is φ = 21692240640.

The previous prime is 51428442697. The next prime is 51428442757. The reversal of 51428442736 is 63724482415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35248375 + ... + 35249833.

It is an arithmetic number, because the mean of its divisors is an integer number (729953280).

Almost surely, 2^51428442736 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 51428442736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58396262400).

51428442736 is an abundant number, since it is smaller than the sum of its proper divisors (65364082064).

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

51428442736 is a wasteful number, since it uses less digits than its factorization.

51428442736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707 (or 1701 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 46.

The spelling of 51428442736 in words is "fifty-one billion, four hundred twenty-eight million, four hundred forty-two thousand, seven hundred thirty-six".