20962365843 has 6 divisors (see below), whose sum is σ = 27950155492. Its totient is φ = 13974743380.

The previous prime is 20962365841. The next prime is 20962365859. The reversal of 20962365843 is 34856326902.

It is not a de Polignac number, because 20962365843 - 2¹ = 20962365841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20962365792 and 20962365801.

It is not an unprimeable number, because it can be changed into a prime (20962365841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208978 + ... + 292568.

Almost surely, 2^20962365843 is an apocalyptic number.

20962365843 is a deficient number, since it is larger than the sum of its proper divisors (6987789649).

20962365843 is an frugal number, since it uses more digits than its factorization.

20962365843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167185 (or 83594 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

Multiplying 20962365843 by its sum of digits (48), we get a square (1006193560464 = 1003092²).

The spelling of 20962365843 in words is "twenty billion, nine hundred sixty-two million, three hundred sixty-five thousand, eight hundred forty-three".