2739916561 has 8 divisors (see below), whose sum is σ = 2861550720. Its totient is φ = 2618491392.

The previous prime is 2739916547. The next prime is 2739916589. The reversal of 2739916561 is 1656199372.

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 2739916561 - 2¹⁵ = 2739883793 is a prime.

It is a super-2 number, since 2×2739916561² = 15014285522484133442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2739916591) 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, 25141 + ... + 78178.

It is an arithmetic number, because the mean of its divisors is an integer number (357693840).

Almost surely, 2^2739916561 is an apocalyptic number.

It is an amenable number.

2739916561 is a deficient number, since it is larger than the sum of its proper divisors (121634159).

2739916561 is a wasteful number, since it uses less digits than its factorization.

2739916561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104495.

The product of its digits is 612360, while the sum is 49.

The square root of 2739916561 is about 52344.2122970630. The cubic root of 2739916561 is about 1399.3051928156.

The spelling of 2739916561 in words is "two billion, seven hundred thirty-nine million, nine hundred sixteen thousand, five hundred sixty-one".