2639011385 has 8 divisors (see below), whose sum is σ = 3168823680. Its totient is φ = 2109869104.

The previous prime is 2639011381. The next prime is 2639011387. The reversal of 2639011385 is 5831109362.

It is a happy number.

2639011385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2639011385 - 2² = 2639011381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2639011381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158795 + ... + 174624.

It is an arithmetic number, because the mean of its divisors is an integer number (396102960).

Almost surely, 2^2639011385 is an apocalyptic number.

It is an amenable number.

2639011385 is a deficient number, since it is larger than the sum of its proper divisors (529812295).

2639011385 is a wasteful number, since it uses less digits than its factorization.

2639011385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335007.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2639011385 is about 51371.3089671657. The cubic root of 2639011385 is about 1381.9121055726.

The spelling of 2639011385 in words is "two billion, six hundred thirty-nine million, eleven thousand, three hundred eighty-five".