20293711936 has 21 divisors (see below), whose sum is σ = 40272596239. Its totient is φ = 10146286144.

The previous prime is 20293711931. The next prime is 20293711943. The reversal of 20293711936 is 63911739202.

The square root of 20293711936 is 142456.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20293711892 and 20293711901.

It is not an unprimeable number, because it can be changed into a prime (20293711931) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1130745 + ... + 1148551.

Almost surely, 2^20293711936 is an apocalyptic number.

20293711936 is the 142456-th square number.

It is an amenable number.

20293711936 is a deficient number, since it is larger than the sum of its proper divisors (19978884303).

20293711936 is an frugal number, since it uses more digits than its factorization.

20293711936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35626 (or 17809 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 20293711936 in words is "twenty billion, two hundred ninety-three million, seven hundred eleven thousand, nine hundred thirty-six".