693805661916482 has 16 divisors (see below), whose sum is σ = 1041645703021560. Its totient is φ = 346590430864128.

The previous prime is 693805661916461. The next prime is 693805661916487. The reversal of 693805661916482 is 284619166508396.

It is a happy number.

It is a Cunningham number, because it is equal to 26340191²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 109830840160441 + 583974821756041 = 10480021^2 + 24165571^2 .

It is not an unprimeable number, because it can be changed into a prime (693805661916487) 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, 486158744 + ... + 487583772.

Almost surely, 2^{693805661916482} is an apocalyptic number.

693805661916482 is a deficient number, since it is larger than the sum of its proper divisors (347840041105078).

693805661916482 is a wasteful number, since it uses less digits than its factorization.

693805661916482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644085.

The product of its (nonzero) digits is 806215680, while the sum is 74.

The spelling of 693805661916482 in words is "six hundred ninety-three trillion, eight hundred five billion, six hundred sixty-one million, nine hundred sixteen thousand, four hundred eighty-two".