6513906900 has 36 divisors (see below), whose sum is σ = 18846904832. Its totient is φ = 1737041760.

The previous prime is 6513906877. The next prime is 6513906913. The reversal of 6513906900 is 96093156.

It is a super-2 number, since 2×6513906900² = 84861966203735220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10856212 + ... + 10856811.

Almost surely, 2^6513906900 is an apocalyptic number.

6513906900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6513906900 is an abundant number, since it is smaller than the sum of its proper divisors (12332997932).

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

6513906900 is a wasteful number, since it uses less digits than its factorization.

6513906900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713040 (or 21713033 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 6513906900 is about 80708.7783329670. The cubic root of 6513906900 is about 1867.5855959505.

The spelling of 6513906900 in words is "six billion, five hundred thirteen million, nine hundred six thousand, nine hundred".