42878516331454 has 4 divisors (see below), whose sum is σ = 64317774497184. Its totient is φ = 21439258165726.

The previous prime is 42878516331419. The next prime is 42878516331461. The reversal of 42878516331454 is 45413361587824.

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

It is a junction number, because it is equal to n+sod(n) for n = 42878516331392 and 42878516331401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10719629082862 + ... + 10719629082865.

It is an arithmetic number, because the mean of its divisors is an integer number (16079443624296).

Almost surely, 2^{42878516331454} is an apocalyptic number.

42878516331454 is a deficient number, since it is larger than the sum of its proper divisors (21439258165730).

42878516331454 is a wasteful number, since it uses less digits than its factorization.

42878516331454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21439258165729.

The product of its digits is 77414400, while the sum is 61.

The spelling of 42878516331454 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixteen million, three hundred thirty-one thousand, four hundred fifty-four".