20052719836 has 12 divisors (see below), whose sum is σ = 35102051712. Its totient is φ = 10023562208.

The previous prime is 20052719831. The next prime is 20052719867. The reversal of 20052719836 is 63891725002.

It is a super-2 number, since 2×20052719836² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20052719792 and 20052719801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052719831) 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, 683260 + ... + 712003.

It is an arithmetic number, because the mean of its divisors is an integer number (2925170976).

Almost surely, 2^20052719836 is an apocalyptic number.

It is an amenable number.

20052719836 is a deficient number, since it is larger than the sum of its proper divisors (15049331876).

20052719836 is a wasteful number, since it uses less digits than its factorization.

20052719836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398860 (or 1398858 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 20052719836 in words is "twenty billion, fifty-two million, seven hundred nineteen thousand, eight hundred thirty-six".