6504783900 has 36 divisors (see below), whose sum is σ = 18820508952. Its totient is φ = 1734608960.

The previous prime is 6504783869. The next prime is 6504783907. The reversal of 6504783900 is 93874056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504783907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10841007 + ... + 10841606.

Almost surely, 2^6504783900 is an apocalyptic number.

6504783900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6504783900 is an abundant number, since it is smaller than the sum of its proper divisors (12315725052).

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

6504783900 is a wasteful number, since it uses less digits than its factorization.

6504783900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21682630 (or 21682623 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 6504783900 is about 80652.2405144457. The cubic root of 6504783900 is about 1866.7133112636.

The spelling of 6504783900 in words is "six billion, five hundred four million, seven hundred eighty-three thousand, nine hundred".