2639539941 has 8 divisors (see below), whose sum is σ = 3520792704. Its totient is φ = 1758990240.

The previous prime is 2639539897. The next prime is 2639539999. The reversal of 2639539941 is 1499359362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2639539941 - 2⁷ = 2639539813 is a prime.

It is a super-2 number, since 2×2639539941² = 13934342200268566962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639539141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166941 + ... + 182066.

It is an arithmetic number, because the mean of its divisors is an integer number (440099088).

Almost surely, 2^2639539941 is an apocalyptic number.

It is an amenable number.

2639539941 is a deficient number, since it is larger than the sum of its proper divisors (881252763).

2639539941 is a wasteful number, since it uses less digits than its factorization.

2639539941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351531.

The product of its digits is 1574640, while the sum is 51.

The square root of 2639539941 is about 51376.4531765283. The cubic root of 2639539941 is about 1382.0043584494.

The spelling of 2639539941 in words is "two billion, six hundred thirty-nine million, five hundred thirty-nine thousand, nine hundred forty-one".