42725619678 has 48 divisors (see below), whose sum is σ = 99997801344. Its totient is φ = 12134208240.

The previous prime is 42725619667. The next prime is 42725619679. The reversal of 42725619678 is 87691652724.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42725619679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386008 + ... + 484203.

It is an arithmetic number, because the mean of its divisors is an integer number (2083287528).

Almost surely, 2^42725619678 is an apocalyptic number.

42725619678 is an abundant number, since it is smaller than the sum of its proper divisors (57272181666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42725619678 is a wasteful number, since it uses less digits than its factorization.

42725619678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870397 (or 870390 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The spelling of 42725619678 in words is "forty-two billion, seven hundred twenty-five million, six hundred nineteen thousand, six hundred seventy-eight".