91959747033 has 32 divisors (see below), whose sum is σ = 159514601472. Its totient is φ = 45694281600.

The previous prime is 91959747029. The next prime is 91959747037. The reversal of 91959747033 is 33074795919.

It is an interprime number because it is at equal distance from previous prime (91959747029) and next prime (91959747037).

It is not a de Polignac number, because 91959747033 - 2² = 91959747029 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91959747037) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8648908 + ... + 8659533.

It is an arithmetic number, because the mean of its divisors is an integer number (4984831296).

Almost surely, 2^91959747033 is an apocalyptic number.

It is an amenable number.

91959747033 is a deficient number, since it is larger than the sum of its proper divisors (67554854439).

91959747033 is a wasteful number, since it uses less digits than its factorization.

91959747033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17308485.

The product of its (nonzero) digits is 6429780, while the sum is 57.

The spelling of 91959747033 in words is "ninety-one billion, nine hundred fifty-nine million, seven hundred forty-seven thousand, thirty-three".