405152808909 has 8 divisors (see below), whose sum is σ = 540207840480. Its totient is φ = 270099824976.

The previous prime is 405152808887. The next prime is 405152808911. The reversal of 405152808909 is 909808251504.

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

It is not a de Polignac number, because 405152808909 - 2¹² = 405152804813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405152808979) 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, 32479 + ... + 900755.

It is an arithmetic number, because the mean of its divisors is an integer number (67525980060).

Almost surely, 2^405152808909 is an apocalyptic number.

It is an amenable number.

405152808909 is a deficient number, since it is larger than the sum of its proper divisors (135055031571).

405152808909 is a wasteful number, since it uses less digits than its factorization.

405152808909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023819.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 405152808909 in words is "four hundred five billion, one hundred fifty-two million, eight hundred eight thousand, nine hundred nine".