20134773500 has 24 divisors (see below), whose sum is σ = 43974346416. Its totient is φ = 8053909200.

The previous prime is 20134773487. The next prime is 20134773523. The reversal of 20134773500 is 537743102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20134274 + ... + 20135273.

It is an arithmetic number, because the mean of its divisors is an integer number (1832264434).

Almost surely, 2^20134773500 is an apocalyptic number.

20134773500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20134773500 is an abundant number, since it is smaller than the sum of its proper divisors (23839572916).

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

20134773500 is a wasteful number, since it uses less digits than its factorization.

20134773500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40269566 (or 40269554 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The spelling of 20134773500 in words is "twenty billion, one hundred thirty-four million, seven hundred seventy-three thousand, five hundred".