90388742363 has 2 divisors, whose sum is σ = 90388742364. Its totient is φ = 90388742362.

The previous prime is 90388742347. The next prime is 90388742413. The reversal of 90388742363 is 36324788309.

It is a weak prime.

It is an emirp because it is prime and its reverse (36324788309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90388742363 - 2⁴ = 90388742347 is a prime.

It is not a weakly prime, because it can be changed into another prime (90388742303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45194371181 + 45194371182.

It is an arithmetic number, because the mean of its divisors is an integer number (45194371182).

Almost surely, 2^90388742363 is an apocalyptic number.

90388742363 is a deficient number, since it is larger than the sum of its proper divisors (1).

90388742363 is an equidigital number, since it uses as much as digits as its factorization.

90388742363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 90388742363 in words is "ninety billion, three hundred eighty-eight million, seven hundred forty-two thousand, three hundred sixty-three".