90685481249 has 8 divisors (see below), whose sum is σ = 99013397760. Its totient is φ = 82371528400.

The previous prime is 90685481233. The next prime is 90685481267. The reversal of 90685481249 is 94218458609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90685481249 - 2⁴ = 90685481233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90685481194 and 90685481203.

It is not an unprimeable number, because it can be changed into a prime (90685481149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3477329 + ... + 3503310.

It is an arithmetic number, because the mean of its divisors is an integer number (12376674720).

Almost surely, 2^90685481249 is an apocalyptic number.

It is an amenable number.

90685481249 is a deficient number, since it is larger than the sum of its proper divisors (8327916511).

90685481249 is a wasteful number, since it uses less digits than its factorization.

90685481249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981831.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 90685481249 in words is "ninety billion, six hundred eighty-five million, four hundred eighty-one thousand, two hundred forty-nine".