13455891339491 has 8 divisors (see below), whose sum is σ = 13603459554960. Its totient is φ = 13308761663712.

The previous prime is 13455891339461. The next prime is 13455891339511. The reversal of 13455891339491 is 19493319855431.

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 13455891339491 - 2⁶ = 13455891339427 is a prime.

It is a super-2 number, since 2×13455891339491² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13455891339421) 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, 109573220 + ... + 109695953.

It is an arithmetic number, because the mean of its divisors is an integer number (1700432444370).

Almost surely, 2^{13455891339491} is an apocalyptic number.

13455891339491 is a deficient number, since it is larger than the sum of its proper divisors (147568215469).

13455891339491 is a wasteful number, since it uses less digits than its factorization.

13455891339491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219269845.

The product of its digits is 62985600, while the sum is 65.

The spelling of 13455891339491 in words is "thirteen trillion, four hundred fifty-five billion, eight hundred ninety-one million, three hundred thirty-nine thousand, four hundred ninety-one".