2739209291 has 12 divisors (see below), whose sum is σ = 3389859792. Its totient is φ = 2167285536.

The previous prime is 2739209281. The next prime is 2739209339. The reversal of 2739209291 is 1929029372.

It is a de Polignac number, because none of the positive numbers 2^k-2739209291 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2739209251) 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, 1156556 + ... + 1158921.

It is an arithmetic number, because the mean of its divisors is an integer number (282488316).

Almost surely, 2^2739209291 is an apocalyptic number.

2739209291 is a deficient number, since it is larger than the sum of its proper divisors (650650501).

2739209291 is a wasteful number, since it uses less digits than its factorization.

2739209291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315510 (or 2315497 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 2739209291 is about 52337.4559087467. The cubic root of 2739209291 is about 1399.1847789598.

The spelling of 2739209291 in words is "two billion, seven hundred thirty-nine million, two hundred nine thousand, two hundred ninety-one".