20261243626376 has 64 divisors (see below), whose sum is σ = 38945593767600. Its totient is φ = 9878300909568.

The previous prime is 20261243626373. The next prime is 20261243626423. The reversal of 20261243626376 is 67362634216202.

It can be written as a sum of positive squares in 8 ways, for example, as 10532296622500 + 9728947003876 = 3245350^2 + 3119126^2 .

It is not an unprimeable number, because it can be changed into a prime (20261243626373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44497430 + ... + 44950458.

Almost surely, 2^{20261243626376} is an apocalyptic number.

It is an amenable number.

20261243626376 is a deficient number, since it is larger than the sum of its proper divisors (18684350141224).

20261243626376 is a wasteful number, since it uses less digits than its factorization.

20261243626376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453738 (or 453734 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 50.

The spelling of 20261243626376 in words is "twenty trillion, two hundred sixty-one billion, two hundred forty-three million, six hundred twenty-six thousand, three hundred seventy-six".