51941341778339 has 4 divisors (see below), whose sum is σ = 55936829607456. Its totient is φ = 47945853949224.

The previous prime is 51941341778327. The next prime is 51941341778351. The reversal of 51941341778339 is 93387714314915.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51941341778327) and next prime (51941341778351).

It is a cyclic number.

It is not a de Polignac number, because 51941341778339 - 2⁴⁰ = 50841830150563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51941341771339) 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, 1997743914539 + ... + 1997743914564.

It is an arithmetic number, because the mean of its divisors is an integer number (13984207401864).

Almost surely, 2^{51941341778339} is an apocalyptic number.

51941341778339 is a deficient number, since it is larger than the sum of its proper divisors (3995487829117).

51941341778339 is a wasteful number, since it uses less digits than its factorization.

51941341778339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995487829116.

The product of its digits is 68584320, while the sum is 65.

The spelling of 51941341778339 in words is "fifty-one trillion, nine hundred forty-one billion, three hundred forty-one million, seven hundred seventy-eight thousand, three hundred thirty-nine".