611574611968 has 84 divisors (see below), whose sum is σ = 1287566827960. Its totient is φ = 289683800064.

The previous prime is 611574611957. The next prime is 611574611981. The reversal of 611574611968 is 869116475116.

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, 19907596 + ... + 19938292.

Almost surely, 2^611574611968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611574611968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643783413980).

611574611968 is an abundant number, since it is smaller than the sum of its proper divisors (675992215992).

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

611574611968 is an frugal number, since it uses more digits than its factorization.

611574611968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30756 (or 30718 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The spelling of 611574611968 in words is "six hundred eleven billion, five hundred seventy-four million, six hundred eleven thousand, nine hundred sixty-eight".