51204777740215 has 32 divisors (see below), whose sum is σ = 67160654461440. Its totient is φ = 37168251120000.

The previous prime is 51204777740197. The next prime is 51204777740219.

51204777740215 is nontrivially palindromic in base 10.

51204777740215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51204777740215 - 2²⁵ = 51204744185783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51204777740219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83510526 + ... + 84121444.

It is an arithmetic number, because the mean of its divisors is an integer number (2098770451920).

Almost surely, 2^{51204777740215} is an apocalyptic number.

51204777740215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51204777740215 is a deficient number, since it is larger than the sum of its proper divisors (15955876721225).

51204777740215 is a wasteful number, since it uses less digits than its factorization.

51204777740215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613863.

The product of its (nonzero) digits is 3841600, while the sum is 52.

The spelling of 51204777740215 in words is "fifty-one trillion, two hundred four billion, seven hundred seventy-seven million, seven hundred forty thousand, two hundred fifteen".