63842712901 has 4 divisors (see below), whose sum is σ = 69646595904. Its totient is φ = 58038829900.

The previous prime is 63842712893. The next prime is 63842712959. The reversal of 63842712901 is 10921724836.

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 63842712901 - 2³ = 63842712893 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 (63842719901) 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, 2901941485 + ... + 2901941506.

It is an arithmetic number, because the mean of its divisors is an integer number (17411648976).

Almost surely, 2^63842712901 is an apocalyptic number.

It is an amenable number.

63842712901 is a deficient number, since it is larger than the sum of its proper divisors (5803883003).

63842712901 is a wasteful number, since it uses less digits than its factorization.

63842712901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803883002.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 63842712901 in words is "sixty-three billion, eight hundred forty-two million, seven hundred twelve thousand, nine hundred one".