697744887412 has 12 divisors (see below), whose sum is σ = 1227380256676. Its totient is φ = 347064814080.

The previous prime is 697744887407. The next prime is 697744887473. The reversal of 697744887412 is 214788447796.

It can be written as a sum of positive squares in 2 ways, for example, as 205395678436 + 492349208976 = 453206^2 + 701676^2 .

It is a congruent number.

It is an unprimeable number.

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, 451906539 + ... + 451908082.

Almost surely, 2^697744887412 is an apocalyptic number.

It is an amenable number.

697744887412 is a deficient number, since it is larger than the sum of its proper divisors (529635369264).

697744887412 is a wasteful number, since it uses less digits than its factorization.

697744887412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903814818 (or 903814816 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 67.

The spelling of 697744887412 in words is "six hundred ninety-seven billion, seven hundred forty-four million, eight hundred eighty-seven thousand, four hundred twelve".