90126957623 has 2 divisors, whose sum is σ = 90126957624. Its totient is φ = 90126957622.

The previous prime is 90126957499. The next prime is 90126957647. The reversal of 90126957623 is 32675962109.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90126957623 - 2¹⁸ = 90126695479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90126957923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45063478811 + 45063478812.

It is an arithmetic number, because the mean of its divisors is an integer number (45063478812).

Almost surely, 2^90126957623 is an apocalyptic number.

90126957623 is a deficient number, since it is larger than the sum of its proper divisors (1).

90126957623 is an equidigital number, since it uses as much as digits as its factorization.

90126957623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 90126957623 in words is "ninety billion, one hundred twenty-six million, nine hundred fifty-seven thousand, six hundred twenty-three".