679221750537 has 96 divisors (see below), whose sum is σ = 1116527892480. Its totient is φ = 407766981600.

The previous prime is 679221750521. The next prime is 679221750539. The reversal of 679221750537 is 735057122976.

679221750537 is a `hidden beast` number, since 6 + 7 + 92 + 2 + 17 + 5 + 0 + 537 = 666.

It is not a de Polignac number, because 679221750537 - 2⁴ = 679221750521 is a prime.

It is a super-2 number, since 2×679221750537² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679221750539) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 169676178 + ... + 169680180.

It is an arithmetic number, because the mean of its divisors is an integer number (11630498880).

Almost surely, 2^679221750537 is an apocalyptic number.

It is an amenable number.

679221750537 is a deficient number, since it is larger than the sum of its proper divisors (437306141943).

679221750537 is a wasteful number, since it uses less digits than its factorization.

679221750537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512 (or 4495 counting only the distinct ones).

The product of its (nonzero) digits is 5556600, while the sum is 54.

The spelling of 679221750537 in words is "six hundred seventy-nine billion, two hundred twenty-one million, seven hundred fifty thousand, five hundred thirty-seven".