405814493752 has 16 divisors (see below), whose sum is σ = 793984879440. Its totient is φ = 194085192576.

The previous prime is 405814493743. The next prime is 405814493761. The reversal of 405814493752 is 257394418504.

It is an interprime number because it is at equal distance from previous prime (405814493743) and next prime (405814493761).

It is a self number, because there is not a number n which added to its sum of digits gives 405814493752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102756593 + ... + 1102756960.

It is an arithmetic number, because the mean of its divisors is an integer number (49624054965).

Almost surely, 2^405814493752 is an apocalyptic number.

It is an amenable number.

405814493752 is a deficient number, since it is larger than the sum of its proper divisors (388170385688).

405814493752 is a wasteful number, since it uses less digits than its factorization.

405814493752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205513582 (or 2205513578 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 405814493752 in words is "four hundred five billion, eight hundred fourteen million, four hundred ninety-three thousand, seven hundred fifty-two".