617589940390 has 8 divisors (see below), whose sum is σ = 1111661892720. Its totient is φ = 247035976152.

The previous prime is 617589940349. The next prime is 617589940427. The reversal of 617589940390 is 93049985716.

617589940390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30879497010 + ... + 30879497029.

It is an arithmetic number, because the mean of its divisors is an integer number (138957736590).

Almost surely, 2^617589940390 is an apocalyptic number.

617589940390 is a deficient number, since it is larger than the sum of its proper divisors (494071952330).

617589940390 is a wasteful number, since it uses less digits than its factorization.

617589940390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61758994046.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 617589940390 in words is "six hundred seventeen billion, five hundred eighty-nine million, nine hundred forty thousand, three hundred ninety".