991341410433 has 64 divisors (see below), whose sum is σ = 1564718515200. Its totient is φ = 551877442560.

The previous prime is 991341410429. The next prime is 991341410447. The reversal of 991341410433 is 334014143199.

It is not a de Polignac number, because 991341410433 - 2² = 991341410429 is a prime.

It is a super-2 number, since 2×991341410433² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (991341410413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2516941 + ... + 2884037.

It is an arithmetic number, because the mean of its divisors is an integer number (24448726800).

Almost surely, 2^991341410433 is an apocalyptic number.

It is an amenable number.

991341410433 is a deficient number, since it is larger than the sum of its proper divisors (573377104767).

991341410433 is a wasteful number, since it uses less digits than its factorization.

991341410433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367262.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 991341410433 in words is "nine hundred ninety-one billion, three hundred forty-one million, four hundred ten thousand, four hundred thirty-three".