6690492104 has 8 divisors (see below), whose sum is σ = 12544672710. Its totient is φ = 3345246048.

The previous prime is 6690492007. The next prime is 6690492131. The reversal of 6690492104 is 4012940966.

It can be written as a sum of positive squares in only one way, i.e., 5961384100 + 729108004 = 77210^2 + 27002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418155749 + ... + 418155764.

Almost surely, 2^6690492104 is an apocalyptic number.

It is an amenable number.

6690492104 is a deficient number, since it is larger than the sum of its proper divisors (5854180606).

6690492104 is a wasteful number, since it uses less digits than its factorization.

6690492104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836311519 (or 836311515 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 6690492104 is about 81795.4283808087. The cubic root of 6690492104 is about 1884.3114516435.

The spelling of 6690492104 in words is "six billion, six hundred ninety million, four hundred ninety-two thousand, one hundred four".