2681450393 has 4 divisors (see below), whose sum is σ = 2688525840. Its totient is φ = 2674374948.

The previous prime is 2681450371. The next prime is 2681450399. The reversal of 2681450393 is 3930541862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2681450393 - 2⁶ = 2681450329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2681450393.

It is not an unprimeable number, because it can be changed into a prime (2681450399) 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, 3537155 + ... + 3537912.

It is an arithmetic number, because the mean of its divisors is an integer number (672131460).

Almost surely, 2^2681450393 is an apocalyptic number.

It is an amenable number.

2681450393 is a deficient number, since it is larger than the sum of its proper divisors (7075447).

2681450393 is an equidigital number, since it uses as much as digits as its factorization.

2681450393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075446.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 2681450393 is about 51782.7229199083. The cubic root of 2681450393 is about 1389.2804434392.

The spelling of 2681450393 in words is "two billion, six hundred eighty-one million, four hundred fifty thousand, three hundred ninety-three".