679008960401 has 4 divisors (see below), whose sum is σ = 718950663972. Its totient is φ = 639067256832.

The previous prime is 679008960361. The next prime is 679008960431. The reversal of 679008960401 is 104069800976.

679008960401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 824020²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 528639509776 + 150369450625 = 727076^2 + 387775^2 .

It is a cyclic number.

It is not a de Polignac number, because 679008960401 - 2⁶ = 679008960337 is a prime.

It is a super-2 number, since 2×679008960401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 679008960401.

It is not an unprimeable number, because it can be changed into a prime (679008960431) 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, 19970851760 + ... + 19970851793.

It is an arithmetic number, because the mean of its divisors is an integer number (179737665993).

Almost surely, 2^679008960401 is an apocalyptic number.

It is an amenable number.

679008960401 is a deficient number, since it is larger than the sum of its proper divisors (39941703571).

679008960401 is a wasteful number, since it uses less digits than its factorization.

679008960401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39941703570.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 679008960401 in words is "six hundred seventy-nine billion, eight million, nine hundred sixty thousand, four hundred one".