90814025847 has 16 divisors (see below), whose sum is σ = 124662061280. Its totient is φ = 58762340352.

The previous prime is 90814025839. The next prime is 90814025851. The reversal of 90814025847 is 74852041809.

It is a happy number.

It is not a de Polignac number, because 90814025847 - 2³ = 90814025839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90814025796 and 90814025805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90814025867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954778 + ... + 1045575.

It is an arithmetic number, because the mean of its divisors is an integer number (7791378830).

Almost surely, 2^90814025847 is an apocalyptic number.

90814025847 is a deficient number, since it is larger than the sum of its proper divisors (33848035433).

90814025847 is a wasteful number, since it uses less digits than its factorization.

90814025847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000802.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 90814025847 in words is "ninety billion, eight hundred fourteen million, twenty-five thousand, eight hundred forty-seven".