611534868 has 48 divisors (see below), whose sum is σ = 1632322944. Its totient is φ = 174556800.

The previous prime is 611534867. The next prime is 611534873. The reversal of 611534868 is 868435116.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611534867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104418 + ... + 110118.

It is an arithmetic number, because the mean of its divisors is an integer number (34006728).

Almost surely, 2^611534868 is an apocalyptic number.

It is an amenable number.

611534868 is an abundant number, since it is smaller than the sum of its proper divisors (1020788076).

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

611534868 is a wasteful number, since it uses less digits than its factorization.

611534868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6990 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 611534868 is about 24729.2310434433. The cubic root of 611534868 is about 848.8033301342.

The spelling of 611534868 in words is "six hundred eleven million, five hundred thirty-four thousand, eight hundred sixty-eight".