90322133987 has 2 divisors, whose sum is σ = 90322133988. Its totient is φ = 90322133986.

The previous prime is 90322133963. The next prime is 90322134041. The reversal of 90322133987 is 78933122309.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90322133987 - 2¹⁰ = 90322132963 is a prime.

It is not a weakly prime, because it can be changed into another prime (90322133927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45161066993 + 45161066994.

It is an arithmetic number, because the mean of its divisors is an integer number (45161066994).

Almost surely, 2^90322133987 is an apocalyptic number.

90322133987 is a deficient number, since it is larger than the sum of its proper divisors (1).

90322133987 is an equidigital number, since it uses as much as digits as its factorization.

90322133987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 90322133987 in words is "ninety billion, three hundred twenty-two million, one hundred thirty-three thousand, nine hundred eighty-seven".