698813136477 has 24 divisors (see below), whose sum is σ = 1029222270648. Its totient is φ = 456773990400.

The previous prime is 698813136473. The next prime is 698813136487. The reversal of 698813136477 is 774631318896.

698813136477 is a `hidden beast` number, since 69 + 88 + 13 + 13 + 6 + 477 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 229013930916 + 469799205561 = 478554^2 + 685419^2 .

It is not a de Polignac number, because 698813136477 - 2² = 698813136473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698813136473) 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 23 ways as a sum of consecutive naturals, for example, 1861524 + ... + 2205197.

It is an arithmetic number, because the mean of its divisors is an integer number (42884261277).

Almost surely, 2^698813136477 is an apocalyptic number.

It is an amenable number.

698813136477 is a deficient number, since it is larger than the sum of its proper divisors (330409134171).

698813136477 is a wasteful number, since it uses less digits than its factorization.

698813136477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067101 (or 4067098 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 698813136477 in words is "six hundred ninety-eight billion, eight hundred thirteen million, one hundred thirty-six thousand, four hundred seventy-seven".