91838283820 has 24 divisors (see below), whose sum is σ = 192866262624. Its totient is φ = 36734196096.

The previous prime is 91838283809. The next prime is 91838283821. The reversal of 91838283820 is 2838283819.

It is not an unprimeable number, because it can be changed into a prime (91838283821) 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, 1015369 + ... + 1102111.

It is an arithmetic number, because the mean of its divisors is an integer number (8036094276).

Almost surely, 2^91838283820 is an apocalyptic number.

It is an amenable number.

91838283820 is an abundant number, since it is smaller than the sum of its proper divisors (101027978804).

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

91838283820 is a wasteful number, since it uses less digits than its factorization.

91838283820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139689 (or 139687 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 91838283820 in words is "ninety-one billion, eight hundred thirty-eight million, two hundred eighty-three thousand, eight hundred twenty".