1639463419013 has 4 divisors (see below), whose sum is σ = 1873672478880. Its totient is φ = 1405254359148.

The previous prime is 1639463418977. The next prime is 1639463419057. The reversal of 1639463419013 is 3109143649361.

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 not a de Polignac number, because 1639463419013 - 2⁶ = 1639463418949 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 (1639463419093) 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, 117104529923 + ... + 117104529936.

It is an arithmetic number, because the mean of its divisors is an integer number (468418119720).

Almost surely, 2^{1639463419013} is an apocalyptic number.

It is an amenable number.

1639463419013 is a deficient number, since it is larger than the sum of its proper divisors (234209059867).

1639463419013 is an equidigital number, since it uses as much as digits as its factorization.

1639463419013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234209059866.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 1639463419013 in words is "one trillion, six hundred thirty-nine billion, four hundred sixty-three million, four hundred nineteen thousand, thirteen".