691436135396 has 12 divisors (see below), whose sum is σ = 1210030993920. Its totient is φ = 345712994280.

The previous prime is 691436135359. The next prime is 691436135471. The reversal of 691436135396 is 693531634196.

691436135396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953000 + ... + 1513631.

It is an arithmetic number, because the mean of its divisors is an integer number (100835916160).

Almost surely, 2^691436135396 is an apocalyptic number.

It is an amenable number.

691436135396 is a deficient number, since it is larger than the sum of its proper divisors (518594858524).

691436135396 is a wasteful number, since it uses less digits than its factorization.

691436135396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536714 (or 2536712 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 56.

The spelling of 691436135396 in words is "six hundred ninety-one billion, four hundred thirty-six million, one hundred thirty-five thousand, three hundred ninety-six".