6698773453 has 4 divisors (see below), whose sum is σ = 6758054748. Its totient is φ = 6639492160.

The previous prime is 6698773441. The next prime is 6698773511. The reversal of 6698773453 is 3543778966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 512479044 + 6186294409 = 22638^2 + 78653^2 .

It is a cyclic number.

It is not a de Polignac number, because 6698773453 - 2²⁵ = 6665219021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698773153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29640478 + ... + 29640703.

It is an arithmetic number, because the mean of its divisors is an integer number (1689513687).

Almost surely, 2^6698773453 is an apocalyptic number.

It is an amenable number.

6698773453 is a deficient number, since it is larger than the sum of its proper divisors (59281295).

6698773453 is a wasteful number, since it uses less digits than its factorization.

6698773453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59281294.

The product of its digits is 22861440, while the sum is 58.

The square root of 6698773453 is about 81846.0350475208. The cubic root of 6698773453 is about 1885.0885846541.

The spelling of 6698773453 in words is "six billion, six hundred ninety-eight million, seven hundred seventy-three thousand, four hundred fifty-three".