805145724646 has 4 divisors (see below), whose sum is σ = 1207718586972. Its totient is φ = 402572862322.

The previous prime is 805145724571. The next prime is 805145724703. The reversal of 805145724646 is 646427541508.

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

It is a junction number, because it is equal to n+sod(n) for n = 805145724593 and 805145724602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201286431160 + ... + 201286431163.

It is an arithmetic number, because the mean of its divisors is an integer number (301929646743).

Almost surely, 2^805145724646 is an apocalyptic number.

805145724646 is a deficient number, since it is larger than the sum of its proper divisors (402572862326).

805145724646 is a wasteful number, since it uses less digits than its factorization.

805145724646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402572862325.

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 805145724646 in words is "eight hundred five billion, one hundred forty-five million, seven hundred twenty-four thousand, six hundred forty-six".