611321648 has 30 divisors (see below), whose sum is σ = 1377814716. Its totient is φ = 261994656.

The previous prime is 611321647. The next prime is 611321657. The reversal of 611321648 is 846123116.

It is not an unprimeable number, because it can be changed into a prime (611321647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 389090 + ... + 390657.

Almost surely, 2^611321648 is an apocalyptic number.

It is an amenable number.

611321648 is an abundant number, since it is smaller than the sum of its proper divisors (766493068).

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

611321648 is a wasteful number, since it uses less digits than its factorization.

611321648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779769 (or 779756 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 611321648 is about 24724.9195751978. The cubic root of 611321648 is about 848.7046697015.

The spelling of 611321648 in words is "six hundred eleven million, three hundred twenty-one thousand, six hundred forty-eight".