2742752639 has 4 divisors (see below), whose sum is σ = 2992093800. Its totient is φ = 2493411480.

The previous prime is 2742752629. The next prime is 2742752641. The reversal of 2742752639 is 9362572472.

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 2742752639 - 2²⁴ = 2725975423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2742752593 and 2742752602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742752609) 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, 124670564 + ... + 124670585.

It is an arithmetic number, because the mean of its divisors is an integer number (748023450).

Almost surely, 2^2742752639 is an apocalyptic number.

2742752639 is a deficient number, since it is larger than the sum of its proper divisors (249341161).

2742752639 is a wasteful number, since it uses less digits than its factorization.

2742752639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249341160.

The product of its digits is 1270080, while the sum is 47.

The square root of 2742752639 is about 52371.2959453936. The cubic root of 2742752639 is about 1399.7878316233.

The spelling of 2742752639 in words is "two billion, seven hundred forty-two million, seven hundred fifty-two thousand, six hundred thirty-nine".