51467731349 has 4 divisors (see below), whose sum is σ = 51469031136. Its totient is φ = 51466431564.

The previous prime is 51467731333. The next prime is 51467731351. The reversal of 51467731349 is 94313776415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51467731349 - 2⁴ = 51467731333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51467731297 and 51467731306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51467731309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588569 + ... + 670334.

It is an arithmetic number, because the mean of its divisors is an integer number (12867257784).

Almost surely, 2^51467731349 is an apocalyptic number.

It is an amenable number.

51467731349 is a deficient number, since it is larger than the sum of its proper divisors (1299787).

51467731349 is a wasteful number, since it uses less digits than its factorization.

51467731349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299786.

The product of its digits is 1905120, while the sum is 50.

The spelling of 51467731349 in words is "fifty-one billion, four hundred sixty-seven million, seven hundred thirty-one thousand, three hundred forty-nine".