51634255243615 has 32 divisors (see below), whose sum is σ = 68703457822272. Its totient is φ = 36935809152000.

The previous prime is 51634255243603. The next prime is 51634255243619.

51634255243615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51634255243615 - 2⁴¹ = 49435231988063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51634255243619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198126795 + ... + 198387235.

It is an arithmetic number, because the mean of its divisors is an integer number (2146983056946).

Almost surely, 2^{51634255243615} is an apocalyptic number.

51634255243615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51634255243615 is a deficient number, since it is larger than the sum of its proper divisors (17069202578657).

51634255243615 is a wasteful number, since it uses less digits than its factorization.

51634255243615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319611.

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

The spelling of 51634255243615 in words is "fifty-one trillion, six hundred thirty-four billion, two hundred fifty-five million, two hundred forty-three thousand, six hundred fifteen".