91745901763 has 4 divisors (see below), whose sum is σ = 91746602640. Its totient is φ = 91745200888.

The previous prime is 91745901721. The next prime is 91745901769. The reversal of 91745901763 is 36710954719.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 91745901763 - 2¹³ = 91745893571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91745901763.

It is not an unprimeable number, because it can be changed into a prime (91745901769) 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, 89143 + ... + 437536.

It is an arithmetic number, because the mean of its divisors is an integer number (22936650660).

Almost surely, 2^91745901763 is an apocalyptic number.

91745901763 is a deficient number, since it is larger than the sum of its proper divisors (700877).

91745901763 is a wasteful number, since it uses less digits than its factorization.

91745901763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700876.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 91745901763 in words is "ninety-one billion, seven hundred forty-five million, nine hundred one thousand, seven hundred sixty-three".