90504383390197 has 24 divisors (see below), whose sum is σ = 106866856881504. Its totient is φ = 76406694531552.

The previous prime is 90504383390159. The next prime is 90504383390203. The reversal of 90504383390197 is 79109338340509.

It is not a de Polignac number, because 90504383390197 - 2⁴³ = 81708290367989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90504383390117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21677043 + ... + 25512799.

It is an arithmetic number, because the mean of its divisors is an integer number (4452785703396).

Almost surely, 2^{90504383390197} is an apocalyptic number.

It is an amenable number.

90504383390197 is a deficient number, since it is larger than the sum of its proper divisors (16362473491307).

90504383390197 is a wasteful number, since it uses less digits than its factorization.

90504383390197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843025 (or 3843018 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 90504383390197 in words is "ninety trillion, five hundred four billion, three hundred eighty-three million, three hundred ninety thousand, one hundred ninety-seven".