6689500400 has 60 divisors (see below), whose sum is σ = 17532583944. Its totient is φ = 2432544000.

The previous prime is 6689500399. The next prime is 6689500429. The reversal of 6689500400 is 40059866.

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, 755771 + ... + 764570.

Almost surely, 2^6689500400 is an apocalyptic number.

It is an amenable number.

6689500400 is an abundant number, since it is smaller than the sum of its proper divisors (10843083544).

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

6689500400 is a wasteful number, since it uses less digits than its factorization.

6689500400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520370 (or 1520359 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6689500400 is about 81789.3660569637. The cubic root of 6689500400 is about 1884.2183458095.

The spelling of 6689500400 in words is "six billion, six hundred eighty-nine million, five hundred thousand, four hundred".