20200763749999 has 4 divisors (see below), whose sum is σ = 23086587142864. Its totient is φ = 17314940357136.

The previous prime is 20200763749973. The next prime is 20200763750003. The reversal of 20200763749999 is 99994736700202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200763749999 - 2¹¹ = 20200763747951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200763749799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442911696422 + ... + 1442911696435.

It is an arithmetic number, because the mean of its divisors is an integer number (5771646785716).

Almost surely, 2^{20200763749999} is an apocalyptic number.

20200763749999 is a deficient number, since it is larger than the sum of its proper divisors (2885823392865).

20200763749999 is an equidigital number, since it uses as much as digits as its factorization.

20200763749999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885823392864.

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 20200763749999 in words is "twenty trillion, two hundred billion, seven hundred sixty-three million, seven hundred forty-nine thousand, nine hundred ninety-nine".