694374938649 has 12 divisors (see below), whose sum is σ = 1146269740096. Its totient is φ = 396785679192.

The previous prime is 694374938627. The next prime is 694374938651. The reversal of 694374938649 is 946839473496.

694374938649 is a `hidden beast` number, since 6 + 94 + 3 + 7 + 493 + 8 + 6 + 49 = 666.

694374938649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 694374938649 - 2¹⁵ = 694374905881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694374930649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5510912149 + ... + 5510912274.

Almost surely, 2^694374938649 is an apocalyptic number.

It is an amenable number.

694374938649 is a deficient number, since it is larger than the sum of its proper divisors (451894801447).

694374938649 is a wasteful number, since it uses less digits than its factorization.

694374938649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021824436 (or 11021824433 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 72.

The spelling of 694374938649 in words is "six hundred ninety-four billion, three hundred seventy-four million, nine hundred thirty-eight thousand, six hundred forty-nine".