145926943691 has 2 divisors, whose sum is σ = 145926943692. Its totient is φ = 145926943690.

The previous prime is 145926943661. The next prime is 145926943781. The reversal of 145926943691 is 196349629541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145926943691 - 2¹⁸ = 145926681547 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145926943691.

It is not a weakly prime, because it can be changed into another prime (145926943651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72963471845 + 72963471846.

It is an arithmetic number, because the mean of its divisors is an integer number (72963471846).

Almost surely, 2^145926943691 is an apocalyptic number.

145926943691 is a deficient number, since it is larger than the sum of its proper divisors (1).

145926943691 is an equidigital number, since it uses as much as digits as its factorization.

145926943691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 59.

The spelling of 145926943691 in words is "one hundred forty-five billion, nine hundred twenty-six million, nine hundred forty-three thousand, six hundred ninety-one".