63742455271679 has 4 divisors (see below), whose sum is σ = 63743898138360. Its totient is φ = 63741012405000.

The previous prime is 63742455271673. The next prime is 63742455271741. The reversal of 63742455271679 is 97617255424736.

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

It is a cyclic number.

It is not a de Polignac number, because 63742455271679 - 2²⁴ = 63742438494463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63742455271673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721367072 + ... + 721455429.

It is an arithmetic number, because the mean of its divisors is an integer number (15935974534590).

Almost surely, 2^{63742455271679} is an apocalyptic number.

63742455271679 is a deficient number, since it is larger than the sum of its proper divisors (1442866681).

63742455271679 is a wasteful number, since it uses less digits than its factorization.

63742455271679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442866680.

The product of its digits is 533433600, while the sum is 68.

The spelling of 63742455271679 in words is "sixty-three trillion, seven hundred forty-two billion, four hundred fifty-five million, two hundred seventy-one thousand, six hundred seventy-nine".