20794782392 has 32 divisors (see below), whose sum is σ = 40907798400. Its totient is φ = 9897033600.

The previous prime is 20794782391. The next prime is 20794782397. The reversal of 20794782392 is 29328749702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20794782391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672167 + ... + 702422.

It is an arithmetic number, because the mean of its divisors is an integer number (1278368700).

Almost surely, 2^20794782392 is an apocalyptic number.

It is an amenable number.

20794782392 is a deficient number, since it is larger than the sum of its proper divisors (20113016008).

20794782392 is a wasteful number, since it uses less digits than its factorization.

20794782392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374687 (or 1374683 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 20794782392 in words is "twenty billion, seven hundred ninety-four million, seven hundred eighty-two thousand, three hundred ninety-two".