51641934143 has 8 divisors (see below), whose sum is σ = 51801836688. Its totient is φ = 51482109184.

The previous prime is 51641934137. The next prime is 51641934163. The reversal of 51641934143 is 34143914615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51641934143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51641934143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51641934163) 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, 1494821 + ... + 1528977.

It is an arithmetic number, because the mean of its divisors is an integer number (6475229586).

Almost surely, 2^51641934143 is an apocalyptic number.

51641934143 is a deficient number, since it is larger than the sum of its proper divisors (159902545).

51641934143 is a wasteful number, since it uses less digits than its factorization.

51641934143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38793.

The product of its digits is 155520, while the sum is 41.

The spelling of 51641934143 in words is "fifty-one billion, six hundred forty-one million, nine hundred thirty-four thousand, one hundred forty-three".