20200619541 has 4 divisors (see below), whose sum is σ = 26934159392. Its totient is φ = 13467079692.

The previous prime is 20200619531. The next prime is 20200619587. The reversal of 20200619541 is 14591600202.

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 not a de Polignac number, because 20200619541 - 2¹⁰ = 20200618517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200619499 and 20200619508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200619501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366769921 + ... + 3366769926.

It is an arithmetic number, because the mean of its divisors is an integer number (6733539848).

Almost surely, 2^20200619541 is an apocalyptic number.

It is an amenable number.

20200619541 is a deficient number, since it is larger than the sum of its proper divisors (6733539851).

20200619541 is an equidigital number, since it uses as much as digits as its factorization.

20200619541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733539850.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 20200619541 in words is "twenty billion, two hundred million, six hundred nineteen thousand, five hundred forty-one".