405580700447 has 4 divisors (see below), whose sum is σ = 436779215880. Its totient is φ = 374382185016.

The previous prime is 405580700417. The next prime is 405580700501. The reversal of 405580700447 is 744007085504.

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

It is a cyclic number.

It is not a de Polignac number, because 405580700447 - 2¹² = 405580696351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405580700398 and 405580700407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405580700417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15599257697 + ... + 15599257722.

It is an arithmetic number, because the mean of its divisors is an integer number (109194803970).

Almost surely, 2^405580700447 is an apocalyptic number.

405580700447 is a deficient number, since it is larger than the sum of its proper divisors (31198515433).

405580700447 is a wasteful number, since it uses less digits than its factorization.

405580700447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31198515432.

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 405580700447 in words is "four hundred five billion, five hundred eighty million, seven hundred thousand, four hundred forty-seven".