20899489270786 has 8 divisors (see below), whose sum is σ = 35827695892800. Its totient is φ = 8956923973188.

The previous prime is 20899489270763. The next prime is 20899489270819. The reversal of 20899489270786 is 68707298499802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746410331086 + ... + 746410331113.

It is an arithmetic number, because the mean of its divisors is an integer number (4478461986600).

Almost surely, 2^{20899489270786} is an apocalyptic number.

20899489270786 is a deficient number, since it is larger than the sum of its proper divisors (14928206622014).

20899489270786 is a wasteful number, since it uses less digits than its factorization.

20899489270786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492820662208.

The product of its (nonzero) digits is 1755758592, while the sum is 79.

The spelling of 20899489270786 in words is "twenty trillion, eight hundred ninety-nine billion, four hundred eighty-nine million, two hundred seventy thousand, seven hundred eighty-six".