426926961523 has 2 divisors, whose sum is σ = 426926961524. Its totient is φ = 426926961522.

The previous prime is 426926961511. The next prime is 426926961677. The reversal of 426926961523 is 325169629624.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426926961523 is a prime.

It is a super-2 number, since 2×426926961523² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426926991523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213463480761 + 213463480762.

It is an arithmetic number, because the mean of its divisors is an integer number (213463480762).

Almost surely, 2^426926961523 is an apocalyptic number.

426926961523 is a deficient number, since it is larger than the sum of its proper divisors (1).

426926961523 is an equidigital number, since it uses as much as digits as its factorization.

426926961523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 55.

The spelling of 426926961523 in words is "four hundred twenty-six billion, nine hundred twenty-six million, nine hundred sixty-one thousand, five hundred twenty-three".