693391412513 has 4 divisors (see below), whose sum is σ = 693926025540. Its totient is φ = 692856799488.

The previous prime is 693391412479. The next prime is 693391412521. The reversal of 693391412513 is 315214193396.

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 600263904289 + 93127508224 = 774767^2 + 305168^2 .

It is a cyclic number.

It is not a de Polignac number, because 693391412513 - 2¹² = 693391408417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693391012513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267304568 + ... + 267307161.

It is an arithmetic number, because the mean of its divisors is an integer number (173481506385).

Almost surely, 2^693391412513 is an apocalyptic number.

It is an amenable number.

693391412513 is a deficient number, since it is larger than the sum of its proper divisors (534613027).

693391412513 is a wasteful number, since it uses less digits than its factorization.

693391412513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534613026.

The product of its digits is 524880, while the sum is 47.

The spelling of 693391412513 in words is "six hundred ninety-three billion, three hundred ninety-one million, four hundred twelve thousand, five hundred thirteen".