39143053209839 has 4 divisors (see below), whose sum is σ = 39145916860440. Its totient is φ = 39140189559240.

The previous prime is 39143053209773. The next prime is 39143053209853. The reversal of 39143053209839 is 93890235034193.

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 39143053209839 - 2²⁰ = 39143052161263 is a prime.

It is a super-2 number, since 2×39143053209839² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39143053209539) 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, 1431804797 + ... + 1431832134.

It is an arithmetic number, because the mean of its divisors is an integer number (9786479215110).

Almost surely, 2^{39143053209839} is an apocalyptic number.

39143053209839 is a deficient number, since it is larger than the sum of its proper divisors (2863650601).

39143053209839 is a wasteful number, since it uses less digits than its factorization.

39143053209839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863650600.

The product of its (nonzero) digits is 18895680, while the sum is 59.

The spelling of 39143053209839 in words is "thirty-nine trillion, one hundred forty-three billion, fifty-three million, two hundred nine thousand, eight hundred thirty-nine".