689095590979 has 2 divisors, whose sum is σ = 689095590980. Its totient is φ = 689095590978.

The previous prime is 689095590973. The next prime is 689095591021. The reversal of 689095590979 is 979095590986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 689095590979 - 2¹³ = 689095582787 is a prime.

It is a super-4 number, since 4×689095590979⁴ (a number of 48 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (689095590973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344547795489 + 344547795490.

It is an arithmetic number, because the mean of its divisors is an integer number (344547795490).

Almost surely, 2^689095590979 is an apocalyptic number.

689095590979 is a deficient number, since it is larger than the sum of its proper divisors (1).

689095590979 is an equidigital number, since it uses as much as digits as its factorization.

689095590979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 496011600, while the sum is 76.

The spelling of 689095590979 in words is "six hundred eighty-nine billion, ninety-five million, five hundred ninety thousand, nine hundred seventy-nine".