42781625678 has 8 divisors (see below), whose sum is σ = 70006296600. Its totient is φ = 19446193480.

The previous prime is 42781625669. The next prime is 42781625681. The reversal of 42781625678 is 87652618724.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972309653 + ... + 972309696.

It is an arithmetic number, because the mean of its divisors is an integer number (8750787075).

Almost surely, 2^42781625678 is an apocalyptic number.

42781625678 is a deficient number, since it is larger than the sum of its proper divisors (27224670922).

42781625678 is a wasteful number, since it uses less digits than its factorization.

42781625678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944619362.

The product of its digits is 9031680, while the sum is 56.

The spelling of 42781625678 in words is "forty-two billion, seven hundred eighty-one million, six hundred twenty-five thousand, six hundred seventy-eight".