45668117491 has 2 divisors, whose sum is σ = 45668117492. Its totient is φ = 45668117490.

The previous prime is 45668117447. The next prime is 45668117503. The reversal of 45668117491 is 19471186654.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45668117491 - 2¹¹ = 45668115443 is a prime.

It is not a weakly prime, because it can be changed into another prime (45668117591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22834058745 + 22834058746.

It is an arithmetic number, because the mean of its divisors is an integer number (22834058746).

Almost surely, 2^45668117491 is an apocalyptic number.

45668117491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45668117491 is an equidigital number, since it uses as much as digits as its factorization.

45668117491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 52.

The spelling of 45668117491 in words is "forty-five billion, six hundred sixty-eight million, one hundred seventeen thousand, four hundred ninety-one".