2736368581 has 16 divisors (see below), whose sum is σ = 3008557440. Its totient is φ = 2477217600.

The previous prime is 2736368539. The next prime is 2736368669. The reversal of 2736368581 is 1858636372.

2736368581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2736368581 - 2⁹ = 2736368069 is a prime.

It is a super-2 number, since 2×2736368581² = 14975426022167907122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2736368381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566131 + ... + 570943.

It is an arithmetic number, because the mean of its divisors is an integer number (188034840).

Almost surely, 2^2736368581 is an apocalyptic number.

It is an amenable number.

2736368581 is a deficient number, since it is larger than the sum of its proper divisors (272188859).

2736368581 is a wasteful number, since it uses less digits than its factorization.

2736368581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156.

The product of its digits is 1451520, while the sum is 49.

The square root of 2736368581 is about 52310.3104655287. The cubic root of 2736368581 is about 1398.7009345909.

The spelling of 2736368581 in words is "two billion, seven hundred thirty-six million, three hundred sixty-eight thousand, five hundred eighty-one".