63667334423 has 16 divisors (see below), whose sum is σ = 84046719744. Its totient is φ = 46692620160.

The previous prime is 63667334413. The next prime is 63667334429. The reversal of 63667334423 is 32443376636.

It is a cyclic number.

It is not a de Polignac number, because 63667334423 - 2⁴ = 63667334407 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 (63667334429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24317765 + ... + 24320382.

It is an arithmetic number, because the mean of its divisors is an integer number (5252919984).

Almost surely, 2^63667334423 is an apocalyptic number.

63667334423 is a deficient number, since it is larger than the sum of its proper divisors (20379385321).

63667334423 is a wasteful number, since it uses less digits than its factorization.

63667334423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48638182.

The product of its digits is 3919104, while the sum is 47.

The spelling of 63667334423 in words is "sixty-three billion, six hundred sixty-seven million, three hundred thirty-four thousand, four hundred twenty-three".