5491965615423 has 16 divisors (see below), whose sum is σ = 8539499500800. Its totient is φ = 3138266065368.

The previous prime is 5491965615391. The next prime is 5491965615427. The reversal of 5491965615423 is 3245165691945.

It is a happy number.

5491965615423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5491965615423 - 2⁵ = 5491965615391 is a prime.

It is a super-2 number, since 2×5491965615423² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491965615427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2668592565 + ... + 2668594622.

It is an arithmetic number, because the mean of its divisors is an integer number (533718718800).

Almost surely, 2^{5491965615423} is an apocalyptic number.

5491965615423 is a deficient number, since it is larger than the sum of its proper divisors (3047533885377).

5491965615423 is an equidigital number, since it uses as much as digits as its factorization.

5491965615423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337187211 (or 5337187197 counting only the distinct ones).

The product of its digits is 34992000, while the sum is 60.

The spelling of 5491965615423 in words is "five trillion, four hundred ninety-one billion, nine hundred sixty-five million, six hundred fifteen thousand, four hundred twenty-three".