45345781699 has 2 divisors, whose sum is σ = 45345781700. Its totient is φ = 45345781698.

The previous prime is 45345781697. The next prime is 45345781739. The reversal of 45345781699 is 99618754354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45345781699 - 2¹ = 45345781697 is a prime.

Together with 45345781697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45345781693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22672890849 + 22672890850.

It is an arithmetic number, because the mean of its divisors is an integer number (22672890850).

Almost surely, 2^45345781699 is an apocalyptic number.

45345781699 is a deficient number, since it is larger than the sum of its proper divisors (1).

45345781699 is an equidigital number, since it uses as much as digits as its factorization.

45345781699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 61.

The spelling of 45345781699 in words is "forty-five billion, three hundred forty-five million, seven hundred eighty-one thousand, six hundred ninety-nine".