63542402423 has 8 divisors (see below), whose sum is σ = 65099097792. Its totient is φ = 61994237536.

The previous prime is 63542402317. The next prime is 63542402431. The reversal of 63542402423 is 32420424536.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63542402423 - 2¹² = 63542398327 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 (63542402123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117540 + ... + 2147337.

It is an arithmetic number, because the mean of its divisors is an integer number (8137387224).

Almost surely, 2^63542402423 is an apocalyptic number.

63542402423 is a deficient number, since it is larger than the sum of its proper divisors (1556695369).

63542402423 is a wasteful number, since it uses less digits than its factorization.

63542402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265241.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 63542402423 its reverse (32420424536), we get a palindrome (95962826959).

The spelling of 63542402423 in words is "sixty-three billion, five hundred forty-two million, four hundred two thousand, four hundred twenty-three".