51516600019 has 8 divisors (see below), whose sum is σ = 54914432000. Its totient is φ = 48187411272.

The previous prime is 51516599951. The next prime is 51516600061. The reversal of 51516600019 is 91000661515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51516600019 - 2¹⁷ = 51516468947 is a prime.

It is a super-2 number, since 2×51516600019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51516600089) 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 7 ways as a sum of consecutive naturals, for example, 17159259 + ... + 17162260.

It is an arithmetic number, because the mean of its divisors is an integer number (6864304000).

Almost surely, 2^51516600019 is an apocalyptic number.

51516600019 is a deficient number, since it is larger than the sum of its proper divisors (3397831981).

51516600019 is a wasteful number, since it uses less digits than its factorization.

51516600019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34321617.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 51516600019 in words is "fifty-one billion, five hundred sixteen million, six hundred thousand, nineteen".