2681607793 has 4 divisors (see below), whose sum is σ = 2687069808. Its totient is φ = 2676145780.

The previous prime is 2681607791. The next prime is 2681607809. The reversal of 2681607793 is 3977061862.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3977061862 = 2 ⋅1988530931.

It is a cyclic number.

It is not a de Polignac number, because 2681607793 - 2¹ = 2681607791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2681607791) 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, 2730271 + ... + 2731252.

It is an arithmetic number, because the mean of its divisors is an integer number (671767452).

Almost surely, 2^2681607793 is an apocalyptic number.

It is an amenable number.

2681607793 is a deficient number, since it is larger than the sum of its proper divisors (5462015).

2681607793 is an equidigital number, since it uses as much as digits as its factorization.

2681607793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462014.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 2681607793 is about 51784.2427095347. The cubic root of 2681607793 is about 1389.3076262981.

It can be divided in two parts, 268 and 1607793, that added together give a palindrome (1608061).

The spelling of 2681607793 in words is "two billion, six hundred eighty-one million, six hundred seven thousand, seven hundred ninety-three".