20761738012896 has 48 divisors (see below), whose sum is σ = 54499959005184. Its totient is φ = 6920528960384.

The previous prime is 20761738012861. The next prime is 20761738012907. The reversal of 20761738012896 is 69821083716702.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×20761738012896² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13886935 + ... + 15309161.

It is an arithmetic number, because the mean of its divisors is an integer number (1135415812608).

Almost surely, 2^{20761738012896} is an apocalyptic number.

It is an amenable number.

20761738012896 is an abundant number, since it is smaller than the sum of its proper divisors (33738220992288).

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

20761738012896 is a wasteful number, since it uses less digits than its factorization.

20761738012896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574303 (or 1574295 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 20761738012896 in words is "twenty trillion, seven hundred sixty-one billion, seven hundred thirty-eight million, twelve thousand, eight hundred ninety-six".