91828363820 has 48 divisors (see below), whose sum is σ = 214929560160. Its totient is φ = 32751166464.

The previous prime is 91828363817. The next prime is 91828363853. The reversal of 91828363820 is 2836382819.

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, 7100999 + ... + 7113918.

It is an arithmetic number, because the mean of its divisors is an integer number (4477699170).

Almost surely, 2^91828363820 is an apocalyptic number.

It is an amenable number.

91828363820 is an abundant number, since it is smaller than the sum of its proper divisors (123101196340).

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

91828363820 is a wasteful number, since it uses less digits than its factorization.

91828363820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214962 (or 14214960 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 91828363820 in words is "ninety-one billion, eight hundred twenty-eight million, three hundred sixty-three thousand, eight hundred twenty".