23922620543 has 2 divisors, whose sum is σ = 23922620544. Its totient is φ = 23922620542.

The previous prime is 23922620539. The next prime is 23922620549. The reversal of 23922620543 is 34502622932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23922620543 - 2² = 23922620539 is a prime.

It is a super-2 number, since 2×23922620543² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23922620497 and 23922620506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23922620549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11961310271 + 11961310272.

It is an arithmetic number, because the mean of its divisors is an integer number (11961310272).

Almost surely, 2^23922620543 is an apocalyptic number.

23922620543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23922620543 is an equidigital number, since it uses as much as digits as its factorization.

23922620543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 23922620543 in words is "twenty-three billion, nine hundred twenty-two million, six hundred twenty thousand, five hundred forty-three".