679603871477 has 4 divisors (see below), whose sum is σ = 682447402560. Its totient is φ = 676760340396.

The previous prime is 679603871431. The next prime is 679603871539. The reversal of 679603871477 is 774178306976.

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 679603871477 - 2⁶ = 679603871413 is a prime.

It is a super-2 number, since 2×679603871477² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679603871677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421765183 + ... + 1421765660.

It is an arithmetic number, because the mean of its divisors is an integer number (170611850640).

Almost surely, 2^679603871477 is an apocalyptic number.

It is an amenable number.

679603871477 is a deficient number, since it is larger than the sum of its proper divisors (2843531083).

679603871477 is a wasteful number, since it uses less digits than its factorization.

679603871477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843531082.

The product of its (nonzero) digits is 74680704, while the sum is 65.

The spelling of 679603871477 in words is "six hundred seventy-nine billion, six hundred three million, eight hundred seventy-one thousand, four hundred seventy-seven".