42136463447 has 4 divisors (see below), whose sum is σ = 45377729880. Its totient is φ = 38895197016.

The previous prime is 42136463429. The next prime is 42136463491. The reversal of 42136463447 is 74436463124.

It is a happy number.

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

It is not a de Polignac number, because 42136463447 - 2²⁸ = 41868027991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42136463398 and 42136463407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136463417) 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, 1620633197 + ... + 1620633222.

It is an arithmetic number, because the mean of its divisors is an integer number (11344432470).

Almost surely, 2^42136463447 is an apocalyptic number.

42136463447 is a deficient number, since it is larger than the sum of its proper divisors (3241266433).

42136463447 is a wasteful number, since it uses less digits than its factorization.

42136463447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241266432.

The product of its digits is 1161216, while the sum is 44.

The spelling of 42136463447 in words is "forty-two billion, one hundred thirty-six million, four hundred sixty-three thousand, four hundred forty-seven".