9091285020 has 48 divisors (see below), whose sum is σ = 28283999520. Its totient is φ = 2424342528.

The previous prime is 9091285001. The next prime is 9091285031. The reversal of 9091285020 is 205821909.

It is a super-4 number, since 4×9091285020⁴ (a number of 41 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8417317 + ... + 8418396.

It is an arithmetic number, because the mean of its divisors is an integer number (589249990).

Almost surely, 2^9091285020 is an apocalyptic number.

9091285020 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9091285020 is an abundant number, since it is smaller than the sum of its proper divisors (19192714500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9091285020 is a wasteful number, since it uses less digits than its factorization.

9091285020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835731 (or 16835723 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 9091285020 is about 95348.2302929635. The cubic root of 9091285020 is about 2087.0927902563.

The spelling of 9091285020 in words is "nine billion, ninety-one million, two hundred eighty-five thousand, twenty".