698838271655 has 16 divisors (see below), whose sum is σ = 853097370624. Its totient is φ = 549448379040.

The previous prime is 698838271631. The next prime is 698838271661. The reversal of 698838271655 is 556172838896.

It is a de Polignac number, because none of the positive numbers 2^k-698838271655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275667 + ... + 2564436.

It is an arithmetic number, because the mean of its divisors is an integer number (53318585664).

Almost surely, 2^698838271655 is an apocalyptic number.

698838271655 is a deficient number, since it is larger than the sum of its proper divisors (154259098969).

698838271655 is a wasteful number, since it uses less digits than its factorization.

698838271655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840606.

The product of its digits is 174182400, while the sum is 68.

The spelling of 698838271655 in words is "six hundred ninety-eight billion, eight hundred thirty-eight million, two hundred seventy-one thousand, six hundred fifty-five".