20692144837 has 8 divisors (see below), whose sum is σ = 25467255296. Its totient is φ = 16371806832.

The previous prime is 20692144793. The next prime is 20692144849. The reversal of 20692144837 is 73844129602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20692144837 - 2¹⁵ = 20692112069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20692144877) 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, 113693013 + ... + 113693194.

It is an arithmetic number, because the mean of its divisors is an integer number (3183406912).

Almost surely, 2^20692144837 is an apocalyptic number.

It is an amenable number.

20692144837 is a deficient number, since it is larger than the sum of its proper divisors (4775110459).

20692144837 is a wasteful number, since it uses less digits than its factorization.

20692144837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227386227.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 20692144837 in words is "twenty billion, six hundred ninety-two million, one hundred forty-four thousand, eight hundred thirty-seven".