20392373837 has 4 divisors (see below), whose sum is σ = 22246226016. Its totient is φ = 18538521660.

The previous prime is 20392373821. The next prime is 20392373849. The reversal of 20392373837 is 73837329302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20392373837 - 2⁴ = 20392373821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20392373791 and 20392373800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20392373867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926926073 + ... + 926926094.

It is an arithmetic number, because the mean of its divisors is an integer number (5561556504).

Almost surely, 2^20392373837 is an apocalyptic number.

It is an amenable number.

20392373837 is a deficient number, since it is larger than the sum of its proper divisors (1853852179).

20392373837 is a wasteful number, since it uses less digits than its factorization.

20392373837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853852178.

The product of its (nonzero) digits is 1143072, while the sum is 47.

The spelling of 20392373837 in words is "twenty billion, three hundred ninety-two million, three hundred seventy-three thousand, eight hundred thirty-seven".