20136791736 has 48 divisors (see below), whose sum is σ = 57407524200. Its totient is φ = 6358986432.

The previous prime is 20136791729. The next prime is 20136791797. The reversal of 20136791736 is 63719763102.

It is a junction number, because it is equal to n+sod(n) for n = 20136791691 and 20136791700.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7358571 + ... + 7361306.

Almost surely, 2^20136791736 is an apocalyptic number.

It is an amenable number.

20136791736 is an abundant number, since it is smaller than the sum of its proper divisors (37270732464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20136791736 is a wasteful number, since it uses less digits than its factorization.

20136791736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14719908 (or 14719901 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 20136791736 in words is "twenty billion, one hundred thirty-six million, seven hundred ninety-one thousand, seven hundred thirty-six".