679251667401 has 16 divisors (see below), whose sum is σ = 1033496032000. Its totient is φ = 440595675504.

The previous prime is 679251667351. The next prime is 679251667411. The reversal of 679251667401 is 104766152976.

679251667401 is a `hidden beast` number, since 6 + 79 + 2 + 5 + 166 + 7 + 401 = 666.

It is not a de Polignac number, because 679251667401 - 2³⁴ = 662071798217 is a prime.

It is a super-2 number, since 2×679251667401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679251667411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339964801 + ... + 339966798.

It is an arithmetic number, because the mean of its divisors is an integer number (64593502000).

Almost surely, 2^679251667401 is an apocalyptic number.

It is an amenable number.

679251667401 is a deficient number, since it is larger than the sum of its proper divisors (354244364599).

679251667401 is a wasteful number, since it uses less digits than its factorization.

679251667401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679931645 (or 679931639 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 679251667401 in words is "six hundred seventy-nine billion, two hundred fifty-one million, six hundred sixty-seven thousand, four hundred one".