609213772680 has 128 divisors (see below), whose sum is σ = 1842772377600. Its totient is φ = 161113059072.

The previous prime is 609213772667. The next prime is 609213772691. The reversal of 609213772680 is 86277312906.

It is a super-2 number, since 2×609213772680² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46917469 + ... + 46930451.

It is an arithmetic number, because the mean of its divisors is an integer number (14396659200).

Almost surely, 2^609213772680 is an apocalyptic number.

609213772680 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 609213772680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921386188800).

609213772680 is an abundant number, since it is smaller than the sum of its proper divisors (1233558604920).

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

609213772680 is a wasteful number, since it uses less digits than its factorization.

609213772680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16203 (or 16199 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 609213772680 in words is "six hundred nine billion, two hundred thirteen million, seven hundred seventy-two thousand, six hundred eighty".