63774731143 has 4 divisors (see below), whose sum is σ = 67131295960. Its totient is φ = 60418166328.

The previous prime is 63774731117. The next prime is 63774731149. The reversal of 63774731143 is 34113747736.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63774731143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63774731093 and 63774731102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63774731149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678282380 + ... + 1678282417.

It is an arithmetic number, because the mean of its divisors is an integer number (16782823990).

Almost surely, 2^63774731143 is an apocalyptic number.

63774731143 is a deficient number, since it is larger than the sum of its proper divisors (3356564817).

63774731143 is a wasteful number, since it uses less digits than its factorization.

63774731143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356564816.

The product of its digits is 889056, while the sum is 46.

The spelling of 63774731143 in words is "sixty-three billion, seven hundred seventy-four million, seven hundred thirty-one thousand, one hundred forty-three".