617091944704 has 81 divisors (see below), whose sum is σ = 1276466938383. Its totient is φ = 297730492416.

The previous prime is 617091944699. The next prime is 617091944717. The reversal of 617091944704 is 407449190716.

The square root of 617091944704 is 785552.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5643014400 + 611448930304 = 75120^2 + 781952^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 364495282 + ... + 364496974.

Almost surely, 2^617091944704 is an apocalyptic number.

617091944704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

617091944704 is the 785552-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617091944704

617091944704 is an abundant number, since it is smaller than the sum of its proper divisors (659374993679).

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

617091944704 is an frugal number, since it uses more digits than its factorization.

617091944704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 617091944704 in words is "six hundred seventeen billion, ninety-one million, nine hundred forty-four thousand, seven hundred four".