5902139665 has 12 divisors (see below), whose sum is σ = 7097285916. Its totient is φ = 4711912448.

The previous prime is 5902139647. The next prime is 5902139669. The reversal of 5902139665 is 5669312095.

It can be written as a sum of positive squares in 6 ways, for example, as 350101521 + 5552038144 = 18711^2 + 74512^2 .

It is not a de Polignac number, because 5902139665 - 2¹⁵ = 5902106897 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 (5902139669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4849137 + ... + 4850353.

It is an arithmetic number, because the mean of its divisors is an integer number (591440493).

Almost surely, 2^5902139665 is an apocalyptic number.

It is an amenable number.

5902139665 is a deficient number, since it is larger than the sum of its proper divisors (1195146251).

5902139665 is an frugal number, since it uses more digits than its factorization.

5902139665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The square root of 5902139665 is about 76825.3842489577. The cubic root of 5902139665 is about 1807.1872784037.

The spelling of 5902139665 in words is "five billion, nine hundred two million, one hundred thirty-nine thousand, six hundred sixty-five".