405997269179 has 16 divisors (see below), whose sum is σ = 427493094336. Its totient is φ = 385071206400.

The previous prime is 405997269169. The next prime is 405997269191. The reversal of 405997269179 is 971962799504.

It is a cyclic number.

It is not a de Polignac number, because 405997269179 - 2⁸ = 405997268923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405997269169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736234 + ... + 1956144.

It is an arithmetic number, because the mean of its divisors is an integer number (26718318396).

Almost surely, 2^405997269179 is an apocalyptic number.

405997269179 is a deficient number, since it is larger than the sum of its proper divisors (21495825157).

405997269179 is a wasteful number, since it uses less digits than its factorization.

405997269179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221206.

The product of its (nonzero) digits is 77157360, while the sum is 68.

The spelling of 405997269179 in words is "four hundred five billion, nine hundred ninety-seven million, two hundred sixty-nine thousand, one hundred seventy-nine".