3447003020639 has 4 divisors (see below), whose sum is σ = 3649767904224. Its totient is φ = 3244238137056.

The previous prime is 3447003020621. The next prime is 3447003020641. The reversal of 3447003020639 is 9360203007443.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3447003020639 - 2⁴⁰ = 2347491392863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3447003020596 and 3447003020605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447003020939) 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, 101382441767 + ... + 101382441800.

It is an arithmetic number, because the mean of its divisors is an integer number (912441976056).

Almost surely, 2^{3447003020639} is an apocalyptic number.

3447003020639 is a deficient number, since it is larger than the sum of its proper divisors (202764883585).

3447003020639 is a wasteful number, since it uses less digits than its factorization.

3447003020639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202764883584.

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 3447003020639 in words is "three trillion, four hundred forty-seven billion, three million, twenty thousand, six hundred thirty-nine".