6549684959970 has 24 divisors (see below), whose sum is σ = 17029180896156. Its totient is φ = 1746582655968.

The previous prime is 6549684959941. The next prime is 6549684959971. The reversal of 6549684959970 is 799594869456.

6549684959970 is a `hidden beast` number, since 6 + 5 + 496 + 8 + 4 + 9 + 59 + 9 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5914541312289 + 635143647681 = 2431983^2 + 796959^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6549684959970.

It is not an unprimeable number, because it can be changed into a prime (6549684959971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36387138577 + ... + 36387138756.

Almost surely, 2^{6549684959970} is an apocalyptic number.

6549684959970 is an abundant number, since it is smaller than the sum of its proper divisors (10479495936186).

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

6549684959970 is a wasteful number, since it uses less digits than its factorization.

6549684959970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72774277346 (or 72774277343 counting only the distinct ones).

The product of its (nonzero) digits is 5290790400, while the sum is 81.

The spelling of 6549684959970 in words is "six trillion, five hundred forty-nine billion, six hundred eighty-four million, nine hundred fifty-nine thousand, nine hundred seventy".