20787973270748 has 12 divisors (see below), whose sum is σ = 36379335945960. Its totient is φ = 10393877286192.

The previous prime is 20787973270739. The next prime is 20787973270759. The reversal of 20787973270748 is 84707237978702.

It is a happy number.

It is a hoax number, since the sum of its digits (71) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26908811 + ... + 27670562.

It is an arithmetic number, because the mean of its divisors is an integer number (3031611328830).

Almost surely, 2^{20787973270748} is an apocalyptic number.

It is an amenable number.

20787973270748 is a deficient number, since it is larger than the sum of its proper divisors (15591362675212).

20787973270748 is a wasteful number, since it uses less digits than its factorization.

20787973270748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54674596 (or 54674594 counting only the distinct ones).

The product of its (nonzero) digits is 464679936, while the sum is 71.

The spelling of 20787973270748 in words is "twenty trillion, seven hundred eighty-seven billion, nine hundred seventy-three million, two hundred seventy thousand, seven hundred forty-eight".