679018699707 has 4 divisors (see below), whose sum is σ = 905358266280. Its totient is φ = 452679133136.

The previous prime is 679018699699. The next prime is 679018699717. The reversal of 679018699707 is 707996810976.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679018699707 - 2³ = 679018699699 is a prime.

It is a super-2 number, since 2×679018699707² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679018699717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113169783282 + ... + 113169783287.

It is an arithmetic number, because the mean of its divisors is an integer number (226339566570).

Almost surely, 2^679018699707 is an apocalyptic number.

679018699707 is a deficient number, since it is larger than the sum of its proper divisors (226339566573).

679018699707 is a wasteful number, since it uses less digits than its factorization.

679018699707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226339566572.

The product of its (nonzero) digits is 72013536, while the sum is 69.

The spelling of 679018699707 in words is "six hundred seventy-nine billion, eighteen million, six hundred ninety-nine thousand, seven hundred seven".