63281342377 has 4 divisors (see below), whose sum is σ = 69034191696. Its totient is φ = 57528493060.

The previous prime is 63281342321. The next prime is 63281342393. The reversal of 63281342377 is 77324318236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63281342377 - 2¹⁹ = 63280818089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63281342177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2876424643 + ... + 2876424664.

It is an arithmetic number, because the mean of its divisors is an integer number (17258547924).

Almost surely, 2^63281342377 is an apocalyptic number.

It is an amenable number.

63281342377 is a deficient number, since it is larger than the sum of its proper divisors (5752849319).

63281342377 is a wasteful number, since it uses less digits than its factorization.

63281342377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752849318.

The product of its digits is 1016064, while the sum is 46.

The spelling of 63281342377 in words is "sixty-three billion, two hundred eighty-one million, three hundred forty-two thousand, three hundred seventy-seven".