611124872 has 8 divisors (see below), whose sum is σ = 1145859150. Its totient is φ = 305562432.

The previous prime is 611124869. The next prime is 611124907. The reversal of 611124872 is 278421116.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 566154436 + 44970436 = 23794^2 + 6706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38195297 + ... + 38195312.

Almost surely, 2^611124872 is an apocalyptic number.

It is an amenable number.

611124872 is a deficient number, since it is larger than the sum of its proper divisors (534734278).

611124872 is a wasteful number, since it uses less digits than its factorization.

611124872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76390615 (or 76390611 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 611124872 is about 24720.9399497673. The cubic root of 611124872 is about 848.6135978232.

Adding to 611124872 its reverse (278421116), we get a palindrome (889545988).

The spelling of 611124872 in words is "six hundred eleven million, one hundred twenty-four thousand, eight hundred seventy-two".