163752622813 has 4 divisors (see below), whose sum is σ = 176348978428. Its totient is φ = 151156267200.

The previous prime is 163752622777. The next prime is 163752622823. The reversal of 163752622813 is 318226257361.

163752622813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318226257361 = 59 ⋅5393665379.

It can be written as a sum of positive squares in 2 ways, for example, as 60928504569 + 102824118244 = 246837^2 + 320662^2 .

It is a cyclic number.

It is not a de Polignac number, because 163752622813 - 2¹³ = 163752614621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163752622823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6298177788 + ... + 6298177813.

It is an arithmetic number, because the mean of its divisors is an integer number (44087244607).

Almost surely, 2^163752622813 is an apocalyptic number.

163752622813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163752622813 is a deficient number, since it is larger than the sum of its proper divisors (12596355615).

163752622813 is a wasteful number, since it uses less digits than its factorization.

163752622813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12596355614.

The product of its digits is 725760, while the sum is 46.

The spelling of 163752622813 in words is "one hundred sixty-three billion, seven hundred fifty-two million, six hundred twenty-two thousand, eight hundred thirteen".