91163830741479 has 12 divisors (see below), whose sum is σ = 131681231478576. Its totient is φ = 60775821331872.

The previous prime is 91163830741433. The next prime is 91163830741493. The reversal of 91163830741479 is 97414703836119.

91163830741479 is a `hidden beast` number, since 9 + 1 + 1 + 63 + 8 + 30 + 74 + 1 + 479 = 666.

It is not a de Polignac number, because 91163830741479 - 2¹¹ = 91163830739431 is a prime.

It is a super-2 number, since 2×91163830741479² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91163830741499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4181659 + ... + 14135555.

It is an arithmetic number, because the mean of its divisors is an integer number (10973435956548).

Almost surely, 2^{91163830741479} is an apocalyptic number.

91163830741479 is a deficient number, since it is larger than the sum of its proper divisors (40517400737097).

91163830741479 is a wasteful number, since it uses less digits than its factorization.

91163830741479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971526 (or 10971523 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 91163830741479 in words is "ninety-one trillion, one hundred sixty-three billion, eight hundred thirty million, seven hundred forty-one thousand, four hundred seventy-nine".