3950502444689 has 4 divisors (see below), whose sum is σ = 3951312476724. Its totient is φ = 3949692412656.

The previous prime is 3950502444677. The next prime is 3950502444697. The reversal of 3950502444689 is 9864442050593.

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

It can be written as a sum of positive squares in 2 ways, for example, as 876732595600 + 3073769849089 = 936340^2 + 1753217^2 .

It is a cyclic number.

It is not a de Polignac number, because 3950502444689 - 2¹² = 3950502440593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3950502444649) 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, 405008702 + ... + 405018455.

It is an arithmetic number, because the mean of its divisors is an integer number (987828119181).

Almost surely, 2^{3950502444689} is an apocalyptic number.

It is an amenable number.

3950502444689 is a deficient number, since it is larger than the sum of its proper divisors (810032035).

3950502444689 is an equidigital number, since it uses as much as digits as its factorization.

3950502444689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810032034.

The product of its (nonzero) digits is 37324800, while the sum is 59.

The spelling of 3950502444689 in words is "three trillion, nine hundred fifty billion, five hundred two million, four hundred forty-four thousand, six hundred eighty-nine".