20929232832 has 28 divisors (see below), whose sum is σ = 55375262376. Its totient is φ = 6976410880.

The previous prime is 20929232809. The next prime is 20929232837. The reversal of 20929232832 is 23823292902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20929232837) 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, 54503019 + ... + 54503402.

It is an arithmetic number, because the mean of its divisors is an integer number (1977687942).

Almost surely, 2^20929232832 is an apocalyptic number.

It is an amenable number.

20929232832 is an abundant number, since it is smaller than the sum of its proper divisors (34446029544).

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

20929232832 is a wasteful number, since it uses less digits than its factorization.

20929232832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109006436 (or 109006426 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 20929232832 in words is "twenty billion, nine hundred twenty-nine million, two hundred thirty-two thousand, eight hundred thirty-two".