20753674234 has 4 divisors (see below), whose sum is σ = 31130511354. Its totient is φ = 10376837116.

The previous prime is 20753674213. The next prime is 20753674259. The reversal of 20753674234 is 43247635702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11842880625 + 8910793609 = 108825^2 + 94397^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5188418557 + ... + 5188418560.

Almost surely, 2^20753674234 is an apocalyptic number.

20753674234 is a deficient number, since it is larger than the sum of its proper divisors (10376837120).

20753674234 is a wasteful number, since it uses less digits than its factorization.

20753674234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376837119.

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 20753674234 in words is "twenty billion, seven hundred fifty-three million, six hundred seventy-four thousand, two hundred thirty-four".