91463646016 has 14 divisors (see below), whose sum is σ = 181498172690. Its totient is φ = 45731822976.

The previous prime is 91463645993. The next prime is 91463646023. The reversal of 91463646016 is 61064636419.

It can be written as a sum of positive squares in only one way, i.e., 91083240000 + 380406016 = 301800^2 + 19504^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714559671 + ... + 714559798.

Almost surely, 2^91463646016 is an apocalyptic number.

It is an amenable number.

91463646016 is a deficient number, since it is larger than the sum of its proper divisors (90034526674).

91463646016 is a wasteful number, since it uses less digits than its factorization.

91463646016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429119481 (or 1429119471 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 91463646016 in words is "ninety-one billion, four hundred sixty-three million, six hundred forty-six thousand, sixteen".