405580628850 has 48 divisors (see below), whose sum is σ = 1065007022688. Its totient is φ = 101792784640.

The previous prime is 405580628801. The next prime is 405580628879. The reversal of 405580628850 is 58826085504.

It is a super-2 number, since 2×405580628850² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 405580628793 and 405580628802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79523064 + ... + 79528163.

It is an arithmetic number, because the mean of its divisors is an integer number (22187646306).

Almost surely, 2^405580628850 is an apocalyptic number.

405580628850 is an abundant number, since it is smaller than the sum of its proper divisors (659426393838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405580628850 is a wasteful number, since it uses less digits than its factorization.

405580628850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159051259 (or 159051254 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 51.

The spelling of 405580628850 in words is "four hundred five billion, five hundred eighty million, six hundred twenty-eight thousand, eight hundred fifty".