2739319991 has 8 divisors (see below), whose sum is σ = 2869891584. Its totient is φ = 2611386360.

The previous prime is 2739319967. The next prime is 2739320009. The reversal of 2739319991 is 1999139372.

It is a happy number.

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 2739319991 - 2²⁶ = 2672211127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2739319951) 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, 657365 + ... + 661518.

It is an arithmetic number, because the mean of its divisors is an integer number (358736448).

Almost surely, 2^2739319991 is an apocalyptic number.

2739319991 is a deficient number, since it is larger than the sum of its proper divisors (130571593).

2739319991 is a wasteful number, since it uses less digits than its factorization.

2739319991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318981.

The product of its digits is 826686, while the sum is 53.

The square root of 2739319991 is about 52338.5134580645. The cubic root of 2739319991 is about 1399.2036271810.

The spelling of 2739319991 in words is "two billion, seven hundred thirty-nine million, three hundred nineteen thousand, nine hundred ninety-one".