42147782455 has 8 divisors (see below), whose sum is σ = 50674419504. Its totient is φ = 33653505600.

The previous prime is 42147782449. The next prime is 42147782471. The reversal of 42147782455 is 55428774124.

42147782455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42147782455 - 2⁹ = 42147781943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42147782399 and 42147782408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8087181 + ... + 8092390.

It is an arithmetic number, because the mean of its divisors is an integer number (6334302438).

Almost surely, 2^42147782455 is an apocalyptic number.

42147782455 is a deficient number, since it is larger than the sum of its proper divisors (8526637049).

42147782455 is a wasteful number, since it uses less digits than its factorization.

42147782455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180097.

The product of its digits is 2508800, while the sum is 49.

The spelling of 42147782455 in words is "forty-two billion, one hundred forty-seven million, seven hundred eighty-two thousand, four hundred fifty-five".