91395803652 has 12 divisors (see below), whose sum is σ = 213256875216. Its totient is φ = 30465267880.

The previous prime is 91395803617. The next prime is 91395803657. The reversal of 91395803652 is 25630859319.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 91395803595 and 91395803604.

It is not an unprimeable number, because it can be changed into a prime (91395803657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3808158474 + ... + 3808158497.

It is an arithmetic number, because the mean of its divisors is an integer number (17771406268).

Almost surely, 2^91395803652 is an apocalyptic number.

It is an amenable number.

91395803652 is an abundant number, since it is smaller than the sum of its proper divisors (121861071564).

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

91395803652 is a wasteful number, since it uses less digits than its factorization.

91395803652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616316978 (or 7616316976 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 91395803652 in words is "ninety-one billion, three hundred ninety-five million, eight hundred three thousand, six hundred fifty-two".