45856265891 has 2 divisors, whose sum is σ = 45856265892. Its totient is φ = 45856265890.

The previous prime is 45856265887. The next prime is 45856265929. The reversal of 45856265891 is 19856265854.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45856265891 - 2² = 45856265887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45856265891.

It is not a weakly prime, because it can be changed into another prime (45856265821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22928132945 + 22928132946.

It is an arithmetic number, because the mean of its divisors is an integer number (22928132946).

Almost surely, 2^45856265891 is an apocalyptic number.

45856265891 is a deficient number, since it is larger than the sum of its proper divisors (1).

45856265891 is an equidigital number, since it uses as much as digits as its factorization.

45856265891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736000, while the sum is 59.

The spelling of 45856265891 in words is "forty-five billion, eight hundred fifty-six million, two hundred sixty-five thousand, eight hundred ninety-one".