51352129919 has 8 divisors (see below), whose sum is σ = 52122288960. Its totient is φ = 50584974336.

The previous prime is 51352129849. The next prime is 51352129931. The reversal of 51352129919 is 91992125315.

It is a happy number.

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 51352129919 - 2²⁴ = 51335352703 is a prime.

It is a super-2 number, since 2×51352129919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352129949) 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, 716402 + ... + 784815.

It is an arithmetic number, because the mean of its divisors is an integer number (6515286120).

Almost surely, 2^51352129919 is an apocalyptic number.

51352129919 is a deficient number, since it is larger than the sum of its proper divisors (770159041).

51352129919 is a wasteful number, since it uses less digits than its factorization.

51352129919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501729.

The product of its digits is 218700, while the sum is 47.

The spelling of 51352129919 in words is "fifty-one billion, three hundred fifty-two million, one hundred twenty-nine thousand, nine hundred nineteen".