42403964009 has 4 divisors (see below), whose sum is σ = 46258869840. Its totient is φ = 38549058180.

The previous prime is 42403963999. The next prime is 42403964021. The reversal of 42403964009 is 90046930424.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42403964009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42403964069) 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, 1927452899 + ... + 1927452920.

It is an arithmetic number, because the mean of its divisors is an integer number (11564717460).

Almost surely, 2^42403964009 is an apocalyptic number.

It is an amenable number.

42403964009 is a deficient number, since it is larger than the sum of its proper divisors (3854905831).

42403964009 is a wasteful number, since it uses less digits than its factorization.

42403964009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854905830.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 42403964009 in words is "forty-two billion, four hundred three million, nine hundred sixty-four thousand, nine".