51279455874 has 8 divisors (see below), whose sum is σ = 102558911760. Its totient is φ = 17093151956.

The previous prime is 51279455839. The next prime is 51279455879. The reversal of 51279455874 is 47855497215.

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

51279455874 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51279455879) 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, 4273287984 + ... + 4273287995.

It is an arithmetic number, because the mean of its divisors is an integer number (12819863970).

Almost surely, 2^51279455874 is an apocalyptic number.

51279455874 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.

51279455874 is a wasteful number, since it uses less digits than its factorization.

51279455874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546575984.

The product of its digits is 14112000, while the sum is 57.

The spelling of 51279455874 in words is "fifty-one billion, two hundred seventy-nine million, four hundred fifty-five thousand, eight hundred seventy-four".