5455782997897 has 4 divisors (see below), whose sum is σ = 5776711409556. Its totient is φ = 5134854586240.

The previous prime is 5455782997859. The next prime is 5455782997921. The reversal of 5455782997897 is 7987992875545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1995379431241 + 3460403566656 = 1412579^2 + 1860216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5455782997897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5455782997837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160464205804 + ... + 160464205837.

It is an arithmetic number, because the mean of its divisors is an integer number (1444177852389).

Almost surely, 2^{5455782997897} is an apocalyptic number.

It is an amenable number.

5455782997897 is a deficient number, since it is larger than the sum of its proper divisors (320928411659).

5455782997897 is a wasteful number, since it uses less digits than its factorization.

5455782997897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320928411658.

The product of its digits is 16003008000, while the sum is 85.

The spelling of 5455782997897 in words is "five trillion, four hundred fifty-five billion, seven hundred eighty-two million, nine hundred ninety-seven thousand, eight hundred ninety-seven".