51297732619 has 8 divisors (see below), whose sum is σ = 58848894720. Its totient is φ = 43802299176.

The previous prime is 51297732587. The next prime is 51297732637. The reversal of 51297732619 is 91623779215.

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 51297732619 - 2⁵ = 51297732587 is a prime.

It is a super-2 number, since 2×51297732619² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51297792619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13930189 + ... + 13933870.

It is an arithmetic number, because the mean of its divisors is an integer number (7356111840).

Almost surely, 2^51297732619 is an apocalyptic number.

51297732619 is a deficient number, since it is larger than the sum of its proper divisors (7551162101).

51297732619 is a wasteful number, since it uses less digits than its factorization.

51297732619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27864329.

The product of its digits is 1428840, while the sum is 52.

The spelling of 51297732619 in words is "fifty-one billion, two hundred ninety-seven million, seven hundred thirty-two thousand, six hundred nineteen".