63983702543 has 2 divisors, whose sum is σ = 63983702544. Its totient is φ = 63983702542.

The previous prime is 63983702477. The next prime is 63983702597. The reversal of 63983702543 is 34520738936.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63983702543 - 2¹⁶ = 63983637007 is a prime.

It is a super-2 number, since 2×63983702543² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63983702491 and 63983702500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63983702243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31991851271 + 31991851272.

It is an arithmetic number, because the mean of its divisors is an integer number (31991851272).

Almost surely, 2^63983702543 is an apocalyptic number.

63983702543 is a deficient number, since it is larger than the sum of its proper divisors (1).

63983702543 is an equidigital number, since it uses as much as digits as its factorization.

63983702543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 63983702543 in words is "sixty-three billion, nine hundred eighty-three million, seven hundred two thousand, five hundred forty-three".