2746639139 has 4 divisors (see below), whose sum is σ = 2866058256. Its totient is φ = 2627220024.

The previous prime is 2746639127. The next prime is 2746639199. The reversal of 2746639139 is 9319366472.

2746639139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2746639139 - 2¹² = 2746635043 is a prime.

It is a super-2 number, since 2×2746639139² = 15088053119773322642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2746639199) 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, 59709524 + ... + 59709569.

It is an arithmetic number, because the mean of its divisors is an integer number (716514564).

Almost surely, 2^2746639139 is an apocalyptic number.

2746639139 is a deficient number, since it is larger than the sum of its proper divisors (119419117).

2746639139 is a wasteful number, since it uses less digits than its factorization.

2746639139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119419116.

The product of its digits is 1469664, while the sum is 50.

The square root of 2746639139 is about 52408.3880595463. The cubic root of 2746639139 is about 1400.4486893464.

The spelling of 2746639139 in words is "two billion, seven hundred forty-six million, six hundred thirty-nine thousand, one hundred thirty-nine".