51285351349 has 8 divisors (see below), whose sum is σ = 52682336640. Its totient is φ = 49888939536.

The previous prime is 51285351331. The next prime is 51285351353. The reversal of 51285351349 is 94315358215.

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 51285351349 - 2¹⁷ = 51285220277 is a prime.

It is a super-2 number, since 2×51285351349² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51285351299 and 51285351308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51285351329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41112 + ... + 322894.

It is an arithmetic number, because the mean of its divisors is an integer number (6585292080).

Almost surely, 2^51285351349 is an apocalyptic number.

It is an amenable number.

51285351349 is a deficient number, since it is larger than the sum of its proper divisors (1396985291).

51285351349 is a wasteful number, since it uses less digits than its factorization.

51285351349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286739.

The product of its digits is 648000, while the sum is 46.

The spelling of 51285351349 in words is "fifty-one billion, two hundred eighty-five million, three hundred fifty-one thousand, three hundred forty-nine".