645007426711 has 2 divisors, whose sum is σ = 645007426712. Its totient is φ = 645007426710.

The previous prime is 645007426699. The next prime is 645007426747. The reversal of 645007426711 is 117624700546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 645007426711 - 2⁹ = 645007426199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (645007406711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322503713355 + 322503713356.

It is an arithmetic number, because the mean of its divisors is an integer number (322503713356).

Almost surely, 2^645007426711 is an apocalyptic number.

645007426711 is a deficient number, since it is larger than the sum of its proper divisors (1).

645007426711 is an equidigital number, since it uses as much as digits as its factorization.

645007426711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 645007426711 in words is "six hundred forty-five billion, seven million, four hundred twenty-six thousand, seven hundred eleven".