409956146013 has 4 divisors (see below), whose sum is σ = 546608194688. Its totient is φ = 273304097340.

The previous prime is 409956146011. The next prime is 409956146051. The reversal of 409956146013 is 310641659904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 409956146013 - 2¹ = 409956146011 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409956146011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68326024333 + ... + 68326024338.

It is an arithmetic number, because the mean of its divisors is an integer number (136652048672).

Almost surely, 2^409956146013 is an apocalyptic number.

It is an amenable number.

409956146013 is a deficient number, since it is larger than the sum of its proper divisors (136652048675).

409956146013 is a wasteful number, since it uses less digits than its factorization.

409956146013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136652048674.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 409956146013 in words is "four hundred nine billion, nine hundred fifty-six million, one hundred forty-six thousand, thirteen".