698172007680 has 648 divisors, whose sum is σ = 2828941000704. Its totient is φ = 158505984000.

The previous prime is 698172007667. The next prime is 698172007723. The reversal of 698172007680 is 86700271896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 85232385 + ... + 85240575.

Almost surely, 2^698172007680 is an apocalyptic number.

698172007680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698172007680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414470500352).

698172007680 is an abundant number, since it is smaller than the sum of its proper divisors (2130768993024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698172007680 is a wasteful number, since it uses less digits than its factorization.

698172007680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 698172007680 in words is "six hundred ninety-eight billion, one hundred seventy-two million, seven thousand, six hundred eighty".