20678383238 has 16 divisors (see below), whose sum is σ = 31115077776. Its totient is φ = 10306732800.

The previous prime is 20678383237. The next prime is 20678383277. The reversal of 20678383238 is 83238387602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20678383237) 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, 1054370 + ... + 1073802.

It is an arithmetic number, because the mean of its divisors is an integer number (1944692361).

Almost surely, 2^20678383238 is an apocalyptic number.

20678383238 is a deficient number, since it is larger than the sum of its proper divisors (10436694538).

20678383238 is a wasteful number, since it uses less digits than its factorization.

20678383238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21079.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 20678383238 in words is "twenty billion, six hundred seventy-eight million, three hundred eighty-three thousand, two hundred thirty-eight".