693145408819 has 8 divisors (see below), whose sum is σ = 699599466720. Its totient is φ = 686693077056.

The previous prime is 693145408817. The next prime is 693145408883. The reversal of 693145408819 is 918804541396.

693145408819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 693145408819 - 2¹ = 693145408817 is a prime.

It is a super-2 number, since 2×693145408819² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693145408811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382434 + ... + 1237960.

It is an arithmetic number, because the mean of its divisors is an integer number (87449933340).

Almost surely, 2^693145408819 is an apocalyptic number.

693145408819 is a deficient number, since it is larger than the sum of its proper divisors (6454057901).

693145408819 is a wasteful number, since it uses less digits than its factorization.

693145408819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863069.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 693145408819 in words is "six hundred ninety-three billion, one hundred forty-five million, four hundred eight thousand, eight hundred nineteen".