51567141643 has 2 divisors, whose sum is σ = 51567141644. Its totient is φ = 51567141642.

The previous prime is 51567141589. The next prime is 51567141733. The reversal of 51567141643 is 34614176515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51567141643 - 2²¹ = 51565044491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51567141643.

It is not a weakly prime, because it can be changed into another prime (51567141443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25783570821 + 25783570822.

It is an arithmetic number, because the mean of its divisors is an integer number (25783570822).

Almost surely, 2^51567141643 is an apocalyptic number.

51567141643 is a deficient number, since it is larger than the sum of its proper divisors (1).

51567141643 is an equidigital number, since it uses as much as digits as its factorization.

51567141643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 51567141643 in words is "fifty-one billion, five hundred sixty-seven million, one hundred forty-one thousand, six hundred forty-three".