6125287644 has 72 divisors (see below), whose sum is σ = 18266114048. Its totient is φ = 1693625760.

The previous prime is 6125287631. The next prime is 6125287661. The reversal of 6125287644 is 4467825216.

6125287644 is a `hidden beast` number, since 6 + 12 + 528 + 76 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6125287644.

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 23 ways as a sum of consecutive naturals, for example, 384232 + ... + 399855.

Almost surely, 2^6125287644 is an apocalyptic number.

It is an amenable number.

6125287644 is an abundant number, since it is smaller than the sum of its proper divisors (12140826404).

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

6125287644 is a wasteful number, since it uses less digits than its factorization.

6125287644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784135 (or 784130 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 6125287644 is about 78264.2168810242. The cubic root of 6125287644 is about 1829.6814961232.

The spelling of 6125287644 in words is "six billion, one hundred twenty-five million, two hundred eighty-seven thousand, six hundred forty-four".