20377337743 has 4 divisors (see below), whose sum is σ = 23288386000. Its totient is φ = 17466289488.

The previous prime is 20377337713. The next prime is 20377337779. The reversal of 20377337743 is 34773377302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34773377302 = 2 ⋅17386688651.

It is a cyclic number.

It is not a de Polignac number, because 20377337743 - 2⁵ = 20377337711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20377337693 and 20377337702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20377337713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455524118 + ... + 1455524131.

It is an arithmetic number, because the mean of its divisors is an integer number (5822096500).

Almost surely, 2^20377337743 is an apocalyptic number.

20377337743 is a deficient number, since it is larger than the sum of its proper divisors (2911048257).

20377337743 is an equidigital number, since it uses as much as digits as its factorization.

20377337743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911048256.

The product of its (nonzero) digits is 1555848, while the sum is 46.

The spelling of 20377337743 in words is "twenty billion, three hundred seventy-seven million, three hundred thirty-seven thousand, seven hundred forty-three".