698939060639 has 2 divisors, whose sum is σ = 698939060640. Its totient is φ = 698939060638.

The previous prime is 698939060629. The next prime is 698939060741. The reversal of 698939060639 is 936060939896.

698939060639 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698939060639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698939060629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349469530319 + 349469530320.

It is an arithmetic number, because the mean of its divisors is an integer number (349469530320).

Almost surely, 2^698939060639 is an apocalyptic number.

698939060639 is a deficient number, since it is larger than the sum of its proper divisors (1).

698939060639 is an equidigital number, since it uses as much as digits as its factorization.

698939060639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102036672, while the sum is 68.

The spelling of 698939060639 in words is "six hundred ninety-eight billion, nine hundred thirty-nine million, sixty thousand, six hundred thirty-nine".