405245621355 has 8 divisors (see below), whose sum is σ = 648392994192. Its totient is φ = 216130998048.

The previous prime is 405245621293. The next prime is 405245621371. The reversal of 405245621355 is 553126542504.

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

It is not a de Polignac number, because 405245621355 - 2¹³ = 405245613163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13508187364 + ... + 13508187393.

It is an arithmetic number, because the mean of its divisors is an integer number (81049124274).

Almost surely, 2^405245621355 is an apocalyptic number.

405245621355 is a deficient number, since it is larger than the sum of its proper divisors (243147372837).

405245621355 is a wasteful number, since it uses less digits than its factorization.

405245621355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27016374765.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 405245621355 in words is "four hundred five billion, two hundred forty-five million, six hundred twenty-one thousand, three hundred fifty-five".