698596371989 has 2 divisors, whose sum is σ = 698596371990. Its totient is φ = 698596371988.

The previous prime is 698596371971. The next prime is 698596372049. The reversal of 698596371989 is 989173695896.

It is a happy number.

698596371989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536160772900 + 162435599089 = 732230^2 + 403033^2 .

It is a cyclic number.

It is not a de Polignac number, because 698596371989 - 2¹² = 698596367893 is a prime.

It is a super-2 number, since 2×698596371989² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698596331989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349298185994 + 349298185995.

It is an arithmetic number, because the mean of its divisors is an integer number (349298185995).

Almost surely, 2^698596371989 is an apocalyptic number.

It is an amenable number.

698596371989 is a deficient number, since it is larger than the sum of its proper divisors (1).

698596371989 is an equidigital number, since it uses as much as digits as its factorization.

698596371989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587237120, while the sum is 80.

The spelling of 698596371989 in words is "six hundred ninety-eight billion, five hundred ninety-six million, three hundred seventy-one thousand, nine hundred eighty-nine".