51345131406 has 8 divisors (see below), whose sum is σ = 102690262824. Its totient is φ = 17115043800.

The previous prime is 51345131401. The next prime is 51345131429. The reversal of 51345131406 is 60413154315.

It is a happy number.

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

51345131406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345131401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4278760945 + ... + 4278760956.

It is an arithmetic number, because the mean of its divisors is an integer number (12836282853).

Almost surely, 2^51345131406 is an apocalyptic number.

51345131406 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.

51345131406 is a wasteful number, since it uses less digits than its factorization.

51345131406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557521906.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 51345131406 in words is "fifty-one billion, three hundred forty-five million, one hundred thirty-one thousand, four hundred six".