20372650243 has 4 divisors (see below), whose sum is σ = 22224709368. Its totient is φ = 18520591120.

The previous prime is 20372650241. The next prime is 20372650267. The reversal of 20372650243 is 34205627302.

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

It is a cyclic number.

It is not a de Polignac number, because 20372650243 - 2¹ = 20372650241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20372650199 and 20372650208.

It is not an unprimeable number, because it can be changed into a prime (20372650241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926029546 + ... + 926029567.

It is an arithmetic number, because the mean of its divisors is an integer number (5556177342).

Almost surely, 2^20372650243 is an apocalyptic number.

20372650243 is a deficient number, since it is larger than the sum of its proper divisors (1852059125).

20372650243 is a wasteful number, since it uses less digits than its factorization.

20372650243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852059124.

The product of its (nonzero) digits is 60480, while the sum is 34.

The spelling of 20372650243 in words is "twenty billion, three hundred seventy-two million, six hundred fifty thousand, two hundred forty-three".