51043634015 has 48 divisors (see below), whose sum is σ = 68249569248. Its totient is φ = 36616800000.

The previous prime is 51043633981. The next prime is 51043634099.

51043634015 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51043634015 - 2¹⁸ = 51043371871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17902340 + ... + 17905190.

It is an arithmetic number, because the mean of its divisors is an integer number (1421866026).

Almost surely, 2^51043634015 is an apocalyptic number.

51043634015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51043634015 is a deficient number, since it is larger than the sum of its proper divisors (17205935233).

51043634015 is a wasteful number, since it uses less digits than its factorization.

51043634015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272 (or 3261 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 51043634015 in words is "fifty-one billion, forty-three million, six hundred thirty-four thousand, fifteen".