679000744531 has 4 divisors (see below), whose sum is σ = 679259808864. Its totient is φ = 678741680200.

The previous prime is 679000744483. The next prime is 679000744537. The reversal of 679000744531 is 135447000976.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679000744531 is a prime.

It is a super-2 number, since 2×679000744531² (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 (679000744537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129528235 + ... + 129533476.

It is an arithmetic number, because the mean of its divisors is an integer number (169814952216).

Almost surely, 2^679000744531 is an apocalyptic number.

679000744531 is a deficient number, since it is larger than the sum of its proper divisors (259064333).

679000744531 is a wasteful number, since it uses less digits than its factorization.

679000744531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259064332.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 679000744531 in words is "six hundred seventy-nine billion, seven hundred forty-four thousand, five hundred thirty-one".