6649122492 has 36 divisors (see below), whose sum is σ = 17430006776. Its totient is φ = 2216373840.

The previous prime is 6649122457. The next prime is 6649122503. The reversal of 6649122492 is 2942219466.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

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, 3419359 + ... + 3421302.

Almost surely, 2^6649122492 is an apocalyptic number.

It is an amenable number.

6649122492 is an abundant number, since it is smaller than the sum of its proper divisors (10780884284).

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

6649122492 is a wasteful number, since it uses less digits than its factorization.

6649122492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840680 (or 6840666 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 6649122492 is about 81542.1516272412. The cubic root of 6649122492 is about 1880.4196373498.

The spelling of 6649122492 in words is "six billion, six hundred forty-nine million, one hundred twenty-two thousand, four hundred ninety-two".