405120287876 has 12 divisors (see below), whose sum is σ = 710404418640. Its totient is φ = 202147596840.

The previous prime is 405120287851. The next prime is 405120287893. The reversal of 405120287876 is 678782021504.

It is a super-2 number, since 2×405120287876² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 103134566 + ... + 103138493.

It is an arithmetic number, because the mean of its divisors is an integer number (59200368220).

Almost surely, 2^405120287876 is an apocalyptic number.

It is an amenable number.

405120287876 is a deficient number, since it is larger than the sum of its proper divisors (305284130764).

405120287876 is a wasteful number, since it uses less digits than its factorization.

405120287876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206273554 (or 206273552 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 405120287876 in words is "four hundred five billion, one hundred twenty million, two hundred eighty-seven thousand, eight hundred seventy-six".