2693668457 has 4 divisors (see below), whose sum is σ = 2700097680. Its totient is φ = 2687239236.

The previous prime is 2693668447. The next prime is 2693668459. The reversal of 2693668457 is 7548663962.

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.

It is a cyclic number.

It is not a de Polignac number, because 2693668457 - 2¹⁶ = 2693602921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2693668459) 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, 3213983 + ... + 3214820.

It is an arithmetic number, because the mean of its divisors is an integer number (675024420).

Almost surely, 2^2693668457 is an apocalyptic number.

It is an amenable number.

2693668457 is a deficient number, since it is larger than the sum of its proper divisors (6429223).

2693668457 is an equidigital number, since it uses as much as digits as its factorization.

2693668457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429222.

The product of its digits is 13063680, while the sum is 56.

The square root of 2693668457 is about 51900.5631665014. The cubic root of 2693668457 is about 1391.3873381814.

The spelling of 2693668457 in words is "two billion, six hundred ninety-three million, six hundred sixty-eight thousand, four hundred fifty-seven".