51405304707442 has 16 divisors (see below), whose sum is σ = 88123619129472. Its totient is φ = 22030784966880.

The previous prime is 51405304707401. The next prime is 51405304707469. The reversal of 51405304707442 is 24470740350415.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51405304707392 and 51405304707401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552358 + ... + 10154590.

It is an arithmetic number, because the mean of its divisors is an integer number (5507726195592).

Almost surely, 2^{51405304707442} is an apocalyptic number.

51405304707442 is a deficient number, since it is larger than the sum of its proper divisors (36718314422030).

51405304707442 is a wasteful number, since it uses less digits than its factorization.

51405304707442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984633.

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 51405304707442 in words is "fifty-one trillion, four hundred five billion, three hundred four million, seven hundred seven thousand, four hundred forty-two".