51944417322 has 16 divisors (see below), whose sum is σ = 118730096832. Its totient is φ = 14841262080.

The previous prime is 51944417297. The next prime is 51944417323. The reversal of 51944417322 is 22371444915.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1236771841 = 51944417322 / (5 + 1 + 9 + 4 + 4 + 4 + 1 + 7 + 3 + 2 + 2).

It is not an unprimeable number, because it can be changed into a prime (51944417323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618385879 + ... + 618385962.

It is an arithmetic number, because the mean of its divisors is an integer number (7420631052).

Almost surely, 2^51944417322 is an apocalyptic number.

51944417322 is an abundant number, since it is smaller than the sum of its proper divisors (66785679510).

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

51944417322 is a wasteful number, since it uses less digits than its factorization.

51944417322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236771853.

The product of its digits is 241920, while the sum is 42.

The spelling of 51944417322 in words is "fifty-one billion, nine hundred forty-four million, four hundred seventeen thousand, three hundred twenty-two".