679051620913 has 4 divisors (see below), whose sum is σ = 690560970480. Its totient is φ = 667542271348.

The previous prime is 679051620893. The next prime is 679051620941. The reversal of 679051620913 is 319026150976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679051620913 - 2²⁵ = 679018066481 is a prime.

It is a super-2 number, since 2×679051620913² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679051620113) 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, 5754674695 + ... + 5754674812.

It is an arithmetic number, because the mean of its divisors is an integer number (172640242620).

Almost surely, 2^679051620913 is an apocalyptic number.

It is an amenable number.

679051620913 is a deficient number, since it is larger than the sum of its proper divisors (11509349567).

679051620913 is a wasteful number, since it uses less digits than its factorization.

679051620913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509349566.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 679051620913 in words is "six hundred seventy-nine billion, fifty-one million, six hundred twenty thousand, nine hundred thirteen".