42878331472167 has 8 divisors (see below), whose sum is σ = 63523454032880. Its totient is φ = 28585554314760.

The previous prime is 42878331472099. The next prime is 42878331472169. The reversal of 42878331472167 is 76127413387824.

42878331472167 is a `hidden beast` number, since 4 + 2 + 8 + 78 + 3 + 31 + 472 + 1 + 67 = 666.

It is not a de Polignac number, because 42878331472167 - 2³⁵ = 42843971733799 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 (42878331472169) 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, 794043175384 + ... + 794043175437.

It is an arithmetic number, because the mean of its divisors is an integer number (7940431754110).

Almost surely, 2^{42878331472167} is an apocalyptic number.

42878331472167 is a deficient number, since it is larger than the sum of its proper divisors (20645122560713).

42878331472167 is a wasteful number, since it uses less digits than its factorization.

42878331472167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588086350830 (or 1588086350824 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 63.

It can be divided in two parts, 4287833 and 1472167, that added together give a square (5760000 = 2400²).

The spelling of 42878331472167 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred thirty-one million, four hundred seventy-two thousand, one hundred sixty-seven".