51004144321015 has 16 divisors (see below), whose sum is σ = 61477271239680. Its totient is φ = 40621799051680.

The previous prime is 51004144320977. The next prime is 51004144321021. The reversal of 51004144321015 is 51012344140015.

It is not a de Polignac number, because 51004144321015 - 2²¹ = 51004142223863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25456470 + ... + 27386860.

It is an arithmetic number, because the mean of its divisors is an integer number (3842329452480).

Almost surely, 2^{51004144321015} is an apocalyptic number.

51004144321015 is a deficient number, since it is larger than the sum of its proper divisors (10473126918665).

51004144321015 is a wasteful number, since it uses less digits than its factorization.

51004144321015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953902.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 51004144321015 in words is "fifty-one trillion, four billion, one hundred forty-four million, three hundred twenty-one thousand, fifteen".