90806229037 has 2 divisors, whose sum is σ = 90806229038. Its totient is φ = 90806229036.

The previous prime is 90806229029. The next prime is 90806229061. The reversal of 90806229037 is 73092260809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66185794756 + 24620434281 = 257266^2 + 156909^2 .

It is a cyclic number.

It is not a de Polignac number, because 90806229037 - 2³ = 90806229029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90806229097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45403114518 + 45403114519.

It is an arithmetic number, because the mean of its divisors is an integer number (45403114519).

Almost surely, 2^90806229037 is an apocalyptic number.

It is an amenable number.

90806229037 is a deficient number, since it is larger than the sum of its proper divisors (1).

90806229037 is an equidigital number, since it uses as much as digits as its factorization.

90806229037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 90806229037 in words is "ninety billion, eight hundred six million, two hundred twenty-nine thousand, thirty-seven".