408661068777 has 48 divisors (see below), whose sum is σ = 592610803200. Its totient is φ = 250381587456.

The previous prime is 408661068743. The next prime is 408661068791. The reversal of 408661068777 is 777860166804.

It is not a de Polignac number, because 408661068777 - 2⁷ = 408661068649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 408661068777.

It is not an unprimeable number, because it can be changed into a prime (408661068707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170345224 + ... + 170347622.

It is an arithmetic number, because the mean of its divisors is an integer number (12346058400).

Almost surely, 2^408661068777 is an apocalyptic number.

It is an amenable number.

408661068777 is a deficient number, since it is larger than the sum of its proper divisors (183949734423).

408661068777 is a wasteful number, since it uses less digits than its factorization.

408661068777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 60.

The spelling of 408661068777 in words is "four hundred eight billion, six hundred sixty-one million, sixty-eight thousand, seven hundred seventy-seven".