51746391371 has 16 divisors (see below), whose sum is σ = 53442698400. Its totient is φ = 50081041920.

The previous prime is 51746391353. The next prime is 51746391503. The reversal of 51746391371 is 17319364715.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51746391371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51746391311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1243205 + ... + 1284153.

It is an arithmetic number, because the mean of its divisors is an integer number (3340168650).

Almost surely, 2^51746391371 is an apocalyptic number.

51746391371 is a deficient number, since it is larger than the sum of its proper divisors (1696307029).

51746391371 is a wasteful number, since it uses less digits than its factorization.

51746391371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41326.

The product of its digits is 476280, while the sum is 47.

The spelling of 51746391371 in words is "fifty-one billion, seven hundred forty-six million, three hundred ninety-one thousand, three hundred seventy-one".