405193978013 has 8 divisors (see below), whose sum is σ = 442150249536. Its totient is φ = 368257782400.

The previous prime is 405193977989. The next prime is 405193978019. The reversal of 405193978013 is 310879391504.

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

It is a cyclic number.

It is not a de Polignac number, because 405193978013 - 2¹⁰ = 405193976989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405193978019) 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, 4976756 + ... + 5057517.

It is an arithmetic number, because the mean of its divisors is an integer number (55268781192).

Almost surely, 2^405193978013 is an apocalyptic number.

It is an amenable number.

405193978013 is a deficient number, since it is larger than the sum of its proper divisors (36956271523).

405193978013 is a wasteful number, since it uses less digits than its factorization.

405193978013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10037955.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 405193978013 in words is "four hundred five billion, one hundred ninety-three million, nine hundred seventy-eight thousand, thirteen".