7866234281641 has 4 divisors (see below), whose sum is σ = 7866240581332. Its totient is φ = 7866227981952.

The previous prime is 7866234281617. The next prime is 7866234281687. The reversal of 7866234281641 is 1461824326687.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2812748265625 + 5053486016016 = 1677125^2 + 2247996^2 .

It is a cyclic number.

It is not a de Polignac number, because 7866234281641 - 2²⁹ = 7865697410729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7866234281141) 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, 575520 + ... + 4007953.

It is an arithmetic number, because the mean of its divisors is an integer number (1966560145333).

Almost surely, 2^{7866234281641} is an apocalyptic number.

It is an amenable number.

7866234281641 is a deficient number, since it is larger than the sum of its proper divisors (6299691).

7866234281641 is a wasteful number, since it uses less digits than its factorization.

7866234281641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299690.

The product of its digits is 18579456, while the sum is 58.

The spelling of 7866234281641 in words is "seven trillion, eight hundred sixty-six billion, two hundred thirty-four million, two hundred eighty-one thousand, six hundred forty-one".