91432623419 has 8 divisors (see below), whose sum is σ = 96334248192. Its totient is φ = 86608189800.

The previous prime is 91432623377. The next prime is 91432623427.

91432623419 is nontrivially palindromic in base 10.

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 91432623419 - 2¹⁶ = 91432557883 is a prime.

It is a super-2 number, since 2×91432623419² (a number of 23 digits) contains 22 as substring.

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 91432623419.

It is not an unprimeable number, because it can be changed into a prime (91432623019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19295357 + ... + 19300094.

It is an arithmetic number, because the mean of its divisors is an integer number (12041781024).

Almost surely, 2^91432623419 is an apocalyptic number.

91432623419 is a deficient number, since it is larger than the sum of its proper divisors (4901624773).

91432623419 is a wasteful number, since it uses less digits than its factorization.

91432623419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38595577.

The product of its digits is 279936, while the sum is 44.

The spelling of 91432623419 in words is "ninety-one billion, four hundred thirty-two million, six hundred twenty-three thousand, four hundred nineteen".