20152748810767 has 4 divisors (see below), whose sum is σ = 20152758770496. Its totient is φ = 20152738851040.

The previous prime is 20152748810723. The next prime is 20152748810839. The reversal of 20152748810767 is 76701884725102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20152748810767 - 2⁷ = 20152748810639 is a prime.

It is a super-2 number, since 2×20152748810767² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152748810717) 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, 743359 + ... + 6392032.

It is an arithmetic number, because the mean of its divisors is an integer number (5038189692624).

Almost surely, 2^{20152748810767} is an apocalyptic number.

20152748810767 is a deficient number, since it is larger than the sum of its proper divisors (9959729).

20152748810767 is an equidigital number, since it uses as much as digits as its factorization.

20152748810767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9959728.

The product of its (nonzero) digits is 10536960, while the sum is 58.

The spelling of 20152748810767 in words is "twenty trillion, one hundred fifty-two billion, seven hundred forty-eight million, eight hundred ten thousand, seven hundred sixty-seven".