691983964342 has 32 divisors (see below), whose sum is σ = 1155573311904. Its totient is φ = 308102995200.

The previous prime is 691983964327. The next prime is 691983964379. The reversal of 691983964342 is 243469389196.

691983964342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238492 + ... + 1200352.

It is an arithmetic number, because the mean of its divisors is an integer number (36111665997).

Almost surely, 2^691983964342 is an apocalyptic number.

691983964342 is a deficient number, since it is larger than the sum of its proper divisors (463589347562).

691983964342 is a wasteful number, since it uses less digits than its factorization.

691983964342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962544.

The product of its digits is 60466176, while the sum is 64.

The spelling of 691983964342 in words is "six hundred ninety-one billion, nine hundred eighty-three million, nine hundred sixty-four thousand, three hundred forty-two".