91310766673 has 8 divisors (see below), whose sum is σ = 110493700992. Its totient is φ = 73662467136.

The previous prime is 91310766661. The next prime is 91310766709. The reversal of 91310766673 is 37666701319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91310766673 - 2¹³ = 91310758481 is a prime.

It is a super-2 number, since 2×91310766673² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91310766653) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 383658565 + ... + 383658802.

It is an arithmetic number, because the mean of its divisors is an integer number (13811712624).

Almost surely, 2^91310766673 is an apocalyptic number.

It is an amenable number.

91310766673 is a deficient number, since it is larger than the sum of its proper divisors (19182934319).

91310766673 is a wasteful number, since it uses less digits than its factorization.

91310766673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767317391.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 91310766673 in words is "ninety-one billion, three hundred ten million, seven hundred sixty-six thousand, six hundred seventy-three".