90409000763 has 2 divisors, whose sum is σ = 90409000764. Its totient is φ = 90409000762.

The previous prime is 90409000751. The next prime is 90409000777. The reversal of 90409000763 is 36700090409.

It is a weak prime.

It is an emirp because it is prime and its reverse (36700090409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90409000763 - 2¹⁰ = 90408999739 is a prime.

It is not a weakly prime, because it can be changed into another prime (90409000723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45204500381 + 45204500382.

It is an arithmetic number, because the mean of its divisors is an integer number (45204500382).

Almost surely, 2^90409000763 is an apocalyptic number.

90409000763 is a deficient number, since it is larger than the sum of its proper divisors (1).

90409000763 is an equidigital number, since it uses as much as digits as its factorization.

90409000763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 90409000763 in words is "ninety billion, four hundred nine million, seven hundred sixty-three", and thus it is an aban number.