6181428744 has 48 divisors (see below), whose sum is σ = 16825536000. Its totient is φ = 2050117344.

The previous prime is 6181428739. The next prime is 6181428787. The reversal of 6181428744 is 4478241816.

6181428744 is a `hidden beast` number, since 6 + 181 + 428 + 7 + 44 = 666.

It is a super-2 number, since 2×6181428744² = 76420122634298835072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6181428744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201384 + ... + 230039.

It is an arithmetic number, because the mean of its divisors is an integer number (350532000).

Almost surely, 2^6181428744 is an apocalyptic number.

It is an amenable number.

6181428744 is an abundant number, since it is smaller than the sum of its proper divisors (10644107256).

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

6181428744 is a wasteful number, since it uses less digits than its factorization.

6181428744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431634 (or 431627 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 6181428744 is about 78622.0627050703. The cubic root of 6181428744 is about 1835.2544639898.

The spelling of 6181428744 in words is "six billion, one hundred eighty-one million, four hundred twenty-eight thousand, seven hundred forty-four".