20034762136513 has 4 divisors (see below), whose sum is σ = 20905838751168. Its totient is φ = 19163685521860.

The previous prime is 20034762136451. The next prime is 20034762136531. The reversal of 20034762136513 is 31563126743002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20034762136513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20034762136513.

It is not an unprimeable number, because it can be changed into a prime (20034762136913) 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, 435538307293 + ... + 435538307338.

It is an arithmetic number, because the mean of its divisors is an integer number (5226459687792).

Almost surely, 2^{20034762136513} is an apocalyptic number.

20034762136513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20034762136513 is a deficient number, since it is larger than the sum of its proper divisors (871076614655).

20034762136513 is an equidigital number, since it uses as much as digits as its factorization.

20034762136513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871076614654.

The product of its (nonzero) digits is 544320, while the sum is 43.

Adding to 20034762136513 its reverse (31563126743002), we get a palindrome (51597888879515).

The spelling of 20034762136513 in words is "twenty trillion, thirty-four billion, seven hundred sixty-two million, one hundred thirty-six thousand, five hundred thirteen".