20862204615743 has 8 divisors (see below), whose sum is σ = 21064869411456. Its totient is φ = 20659542111000.

The previous prime is 20862204615739. The next prime is 20862204615757. The reversal of 20862204615743 is 34751640226802.

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 20862204615743 - 2² = 20862204615739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20862204615691 and 20862204615700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20862204615713) 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, 22045268 + ... + 22972118.

It is an arithmetic number, because the mean of its divisors is an integer number (2633108676432).

Almost surely, 2^{20862204615743} is an apocalyptic number.

20862204615743 is a deficient number, since it is larger than the sum of its proper divisors (202664795713).

20862204615743 is a wasteful number, since it uses less digits than its factorization.

20862204615743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145485.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 20862204615743 in words is "twenty trillion, eight hundred sixty-two billion, two hundred four million, six hundred fifteen thousand, seven hundred forty-three".