51282427746021 has 16 divisors (see below), whose sum is σ = 70743465350400. Its totient is φ = 33005140394688.

The previous prime is 51282427746007. The next prime is 51282427746047. The reversal of 51282427746021 is 12064772428215.

It is not a de Polignac number, because 51282427746021 - 2²³ = 51282419357413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51282427746001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37161181 + ... + 38516466.

It is an arithmetic number, because the mean of its divisors is an integer number (4421466584400).

Almost surely, 2^{51282427746021} is an apocalyptic number.

It is an amenable number.

51282427746021 is a deficient number, since it is larger than the sum of its proper divisors (19461037604379).

51282427746021 is a wasteful number, since it uses less digits than its factorization.

51282427746021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75685468.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 51282427746021 in words is "fifty-one trillion, two hundred eighty-two billion, four hundred twenty-seven million, seven hundred forty-six thousand, twenty-one".