694247239899 has 20 divisors (see below), whose sum is σ = 1051292041096. Its totient is φ = 456491331936.

The previous prime is 694247239879. The next prime is 694247239921. The reversal of 694247239899 is 998932742496.

694247239899 is a `hidden beast` number, since 6 + 9 + 42 + 472 + 39 + 89 + 9 = 666.

It is not a de Polignac number, because 694247239899 - 2⁸ = 694247239643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694247239879) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58699249 + ... + 58711074.

Almost surely, 2^694247239899 is an apocalyptic number.

694247239899 is a deficient number, since it is larger than the sum of its proper divisors (357044801197).

694247239899 is a wasteful number, since it uses less digits than its factorization.

694247239899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117410408 (or 117410399 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

The spelling of 694247239899 in words is "six hundred ninety-four billion, two hundred forty-seven million, two hundred thirty-nine thousand, eight hundred ninety-nine".