405520802363 has 8 divisors (see below), whose sum is σ = 412244801808. Its totient is φ = 398816551584.

The previous prime is 405520802311. The next prime is 405520802429. The reversal of 405520802363 is 363208025504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405520802363 is a prime.

It is a super-2 number, since 2×405520802363² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405520802303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4895756 + ... + 4977897.

It is an arithmetic number, because the mean of its divisors is an integer number (51530600226).

Almost surely, 2^405520802363 is an apocalyptic number.

405520802363 is a deficient number, since it is larger than the sum of its proper divisors (6723999445).

405520802363 is an equidigital number, since it uses as much as digits as its factorization.

405520802363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9874333.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 405520802363 its reverse (363208025504), we get a palindrome (768728827867).

The spelling of 405520802363 in words is "four hundred five billion, five hundred twenty million, eight hundred two thousand, three hundred sixty-three".