90126957647 has 2 divisors, whose sum is σ = 90126957648. Its totient is φ = 90126957646.

The previous prime is 90126957623. The next prime is 90126957667. The reversal of 90126957647 is 74675962109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90126957647 - 2¹⁶ = 90126892111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90126957592 and 90126957601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90126957667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45063478823 + 45063478824.

It is an arithmetic number, because the mean of its divisors is an integer number (45063478824).

Almost surely, 2^90126957647 is an apocalyptic number.

90126957647 is a deficient number, since it is larger than the sum of its proper divisors (1).

90126957647 is an equidigital number, since it uses as much as digits as its factorization.

90126957647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 90126957647 in words is "ninety billion, one hundred twenty-six million, nine hundred fifty-seven thousand, six hundred forty-seven".