51420444323122 has 16 divisors (see below), whose sum is σ = 88149534584832. Its totient is φ = 22037282916480.

The previous prime is 51420444323041. The next prime is 51420444323123. The reversal of 51420444323122 is 22132344402415.

It is not an unprimeable number, because it can be changed into a prime (51420444323123) 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, 2517922 + ... + 10448962.

It is an arithmetic number, because the mean of its divisors is an integer number (5509345911552).

Almost surely, 2^{51420444323122} is an apocalyptic number.

51420444323122 is a deficient number, since it is larger than the sum of its proper divisors (36729090261710).

51420444323122 is a wasteful number, since it uses less digits than its factorization.

51420444323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394153.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 51420444323122 its reverse (22132344402415), we get a palindrome (73552788725537).

The spelling of 51420444323122 in words is "fifty-one trillion, four hundred twenty billion, four hundred forty-four million, three hundred twenty-three thousand, one hundred twenty-two".