42878305835047 has 8 divisors (see below), whose sum is σ = 42882487238016. Its totient is φ = 42874124677752.

The previous prime is 42878305835033. The next prime is 42878305835051. The reversal of 42878305835047 is 74053850387824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42878305835047 is a prime.

It is a super-2 number, since 2×42878305835047² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42878305835047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878305835087) 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, 576570888 + ... + 576645250.

It is an arithmetic number, because the mean of its divisors is an integer number (5360310904752).

Almost surely, 2^{42878305835047} is an apocalyptic number.

42878305835047 is a deficient number, since it is larger than the sum of its proper divisors (4181402969).

42878305835047 is a wasteful number, since it uses less digits than its factorization.

42878305835047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122837.

The product of its (nonzero) digits is 180633600, while the sum is 64.

The spelling of 42878305835047 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred five million, eight hundred thirty-five thousand, forty-seven".