51263455436215 has 16 divisors (see below), whose sum is σ = 67772964314016. Its totient is φ = 36913379248000.

The previous prime is 51263455436203. The next prime is 51263455436231.

51263455436215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51263455436215 - 2¹¹ = 51263455434167 is a prime.

It is a Duffinian number.

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, 4614166852 + ... + 4614177961.

It is an arithmetic number, because the mean of its divisors is an integer number (4235810269626).

Almost surely, 2^{51263455436215} is an apocalyptic number.

51263455436215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51263455436215 is a deficient number, since it is larger than the sum of its proper divisors (16509508877801).

51263455436215 is a wasteful number, since it uses less digits than its factorization.

51263455436215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9228344930.

The product of its digits is 12960000, while the sum is 52.

The spelling of 51263455436215 in words is "fifty-one trillion, two hundred sixty-three billion, four hundred fifty-five million, four hundred thirty-six thousand, two hundred fifteen".