91694133149619 has 256 divisors, whose sum is σ = 166465729511424. Its totient is φ = 43353887385600.

The previous prime is 91694133149557. The next prime is 91694133149623.

91694133149619 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 91694133149619 - 2⁷ = 91694133149491 is a prime.

It is a super-2 number, since 2×91694133149619² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91694133149619.

It is not an unprimeable number, because it can be changed into a prime (91694133149659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 96825905704 + ... + 96825906650.

It is an arithmetic number, because the mean of its divisors is an integer number (650256755904).

Almost surely, 2^{91694133149619} is an apocalyptic number.

91694133149619 is a deficient number, since it is larger than the sum of its proper divisors (74771596361805).

91694133149619 is a wasteful number, since it uses less digits than its factorization.

91694133149619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its digits is 34012224, while the sum is 66.

The spelling of 91694133149619 in words is "ninety-one trillion, six hundred ninety-four billion, one hundred thirty-three million, one hundred forty-nine thousand, six hundred nineteen".