26647000644530 has 16 divisors (see below), whose sum is σ = 54816687040320. Its totient is φ = 9136114506672.

The previous prime is 26647000644503. The next prime is 26647000644541. The reversal of 26647000644530 is 3544600074662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190335718820 + ... + 190335718959.

It is an arithmetic number, because the mean of its divisors is an integer number (3426042940020).

Almost surely, 2^{26647000644530} is an apocalyptic number.

26647000644530 is an abundant number, since it is smaller than the sum of its proper divisors (28169686395790).

26647000644530 is a wasteful number, since it uses less digits than its factorization.

26647000644530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380671437793.

The product of its (nonzero) digits is 2903040, while the sum is 47.

The spelling of 26647000644530 in words is "twenty-six trillion, six hundred forty-seven billion, six hundred forty-four thousand, five hundred thirty".