245322127691 has 2 divisors, whose sum is σ = 245322127692. Its totient is φ = 245322127690.

The previous prime is 245322127669. The next prime is 245322127697. The reversal of 245322127691 is 196721223542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245322127691 - 2¹⁰ = 245322126667 is a prime.

It is not a weakly prime, because it can be changed into another prime (245322127697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122661063845 + 122661063846.

It is an arithmetic number, because the mean of its divisors is an integer number (122661063846).

Almost surely, 2^245322127691 is an apocalyptic number.

245322127691 is a deficient number, since it is larger than the sum of its proper divisors (1).

245322127691 is an equidigital number, since it uses as much as digits as its factorization.

245322127691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The spelling of 245322127691 in words is "two hundred forty-five billion, three hundred twenty-two million, one hundred twenty-seven thousand, six hundred ninety-one".