20772419999 has 2 divisors, whose sum is σ = 20772420000. Its totient is φ = 20772419998.

The previous prime is 20772419989. The next prime is 20772420013. The reversal of 20772419999 is 99991427702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20772419999 - 2¹² = 20772415903 is a prime.

It is a super-2 number, since 2×20772419999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20772419909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10386209999 + 10386210000.

It is an arithmetic number, because the mean of its divisors is an integer number (10386210000).

Almost surely, 2^20772419999 is an apocalyptic number.

20772419999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20772419999 is an equidigital number, since it uses as much as digits as its factorization.

20772419999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The spelling of 20772419999 in words is "twenty billion, seven hundred seventy-two million, four hundred nineteen thousand, nine hundred ninety-nine".