611319680 has 64 divisors (see below), whose sum is σ = 1538384400. Its totient is φ = 231653376.

The previous prime is 611319673. The next prime is 611319701. The reversal of 611319680 is 86913116.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 611319680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12977 + ... + 37296.

Almost surely, 2^611319680 is an apocalyptic number.

It is an amenable number.

611319680 is an abundant number, since it is smaller than the sum of its proper divisors (927064720).

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

611319680 is a wasteful number, since it uses less digits than its factorization.

611319680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50311 (or 50299 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 611319680 is about 24724.8797772608. The cubic root of 611319680 is about 848.7037589684.

The spelling of 611319680 in words is "six hundred eleven million, three hundred nineteen thousand, six hundred eighty".