51321402354 has 8 divisors (see below), whose sum is σ = 102642804720. Its totient is φ = 17107134116.

The previous prime is 51321402311. The next prime is 51321402403. The reversal of 51321402354 is 45320412315.

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

51321402354 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276783524 + ... + 4276783535.

It is an arithmetic number, because the mean of its divisors is an integer number (12830350590).

Almost surely, 2^51321402354 is an apocalyptic number.

51321402354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51321402354 is a wasteful number, since it uses less digits than its factorization.

51321402354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553567064.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51321402354 its reverse (45320412315), we get a palindrome (96641814669).

The spelling of 51321402354 in words is "fifty-one billion, three hundred twenty-one million, four hundred two thousand, three hundred fifty-four".