6649021209592 has 16 divisors (see below), whose sum is σ = 12470963828400. Its totient is φ = 3323430855360.

The previous prime is 6649021209583. The next prime is 6649021209599. The reversal of 6649021209592 is 2959021209466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649021209599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134942509 + ... + 134991772.

It is an arithmetic number, because the mean of its divisors is an integer number (779435239275).

Almost surely, 2^{6649021209592} is an apocalyptic number.

It is an amenable number.

6649021209592 is a deficient number, since it is larger than the sum of its proper divisors (5821942618808).

6649021209592 is a wasteful number, since it uses less digits than its factorization.

6649021209592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269937366 (or 269937362 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 6649021209592 in words is "six trillion, six hundred forty-nine billion, twenty-one million, two hundred nine thousand, five hundred ninety-two".