51104452431 has 8 divisors (see below), whose sum is σ = 68143817344. Its totient is φ = 34067361240.

The previous prime is 51104452423. The next prime is 51104452433. The reversal of 51104452431 is 13425440115.

51104452431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51104452431 - 2³ = 51104452423 is a prime.

It is a super-2 number, since 2×51104452431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51104452433) 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, 515275 + ... + 606396.

It is an arithmetic number, because the mean of its divisors is an integer number (8517977168).

Almost surely, 2^51104452431 is an apocalyptic number.

51104452431 is a deficient number, since it is larger than the sum of its proper divisors (17039364913).

51104452431 is a wasteful number, since it uses less digits than its factorization.

51104452431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136861.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51104452431 its reverse (13425440115), we get a palindrome (64529892546).

The spelling of 51104452431 in words is "fifty-one billion, one hundred four million, four hundred fifty-two thousand, four hundred thirty-one".