90436839668803 has 2 divisors, whose sum is σ = 90436839668804. Its totient is φ = 90436839668802.

The previous prime is 90436839668783. The next prime is 90436839668951. The reversal of 90436839668803 is 30886693863409.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90436839668803 is a prime.

It is a super-3 number, since 3×90436839668803³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (90436839648803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45218419834401 + 45218419834402.

It is an arithmetic number, because the mean of its divisors is an integer number (45218419834402).

Almost surely, 2^{90436839668803} is an apocalyptic number.

90436839668803 is a deficient number, since it is larger than the sum of its proper divisors (1).

90436839668803 is an equidigital number, since it uses as much as digits as its factorization.

90436839668803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967458816, while the sum is 73.

The spelling of 90436839668803 in words is "ninety trillion, four hundred thirty-six billion, eight hundred thirty-nine million, six hundred sixty-eight thousand, eight hundred three".