91606719832 has 32 divisors (see below), whose sum is σ = 177724076400. Its totient is φ = 44214319744.

The previous prime is 91606719823. The next prime is 91606719847. The reversal of 91606719832 is 23891760619.

It is a happy number.

It is a super-3 number, since 3×91606719832³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 91606719832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090983 + ... + 1171945.

Almost surely, 2^91606719832 is an apocalyptic number.

It is an amenable number.

91606719832 is a deficient number, since it is larger than the sum of its proper divisors (86117356568).

91606719832 is a wasteful number, since it uses less digits than its factorization.

91606719832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85875 (or 85871 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 91606719832 in words is "ninety-one billion, six hundred six million, seven hundred nineteen thousand, eight hundred thirty-two".