6411982773571 has 4 divisors (see below), whose sum is σ = 6447408092944. Its totient is φ = 6376557454200.

The previous prime is 6411982773551. The next prime is 6411982773577. The reversal of 6411982773571 is 1753772891146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6411982773571 is a prime.

It is a super-2 number, since 2×6411982773571² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6411982773577) 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, 17712659415 + ... + 17712659776.

It is an arithmetic number, because the mean of its divisors is an integer number (1611852023236).

Almost surely, 2^{6411982773571} is an apocalyptic number.

6411982773571 is a deficient number, since it is larger than the sum of its proper divisors (35425319373).

6411982773571 is a wasteful number, since it uses less digits than its factorization.

6411982773571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35425319372.

The product of its digits is 17781120, while the sum is 61.

The spelling of 6411982773571 in words is "six trillion, four hundred eleven billion, nine hundred eighty-two million, seven hundred seventy-three thousand, five hundred seventy-one".