259627996643 has 2 divisors, whose sum is σ = 259627996644. Its totient is φ = 259627996642.

The previous prime is 259627996613. The next prime is 259627996679. The reversal of 259627996643 is 346699726952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259627996643 is a prime.

It is not a weakly prime, because it can be changed into another prime (259627996603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129813998321 + 129813998322.

It is an arithmetic number, because the mean of its divisors is an integer number (129813998322).

Almost surely, 2^259627996643 is an apocalyptic number.

259627996643 is a deficient number, since it is larger than the sum of its proper divisors (1).

259627996643 is an equidigital number, since it uses as much as digits as its factorization.

259627996643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264539520, while the sum is 68.

The spelling of 259627996643 in words is "two hundred fifty-nine billion, six hundred twenty-seven million, nine hundred ninety-six thousand, six hundred forty-three".