42878059917 has 32 divisors (see below), whose sum is σ = 71289314304. Its totient is φ = 22270723200.

The previous prime is 42878059907. The next prime is 42878059921. The reversal of 42878059917 is 71995087824.

It is not a de Polignac number, because 42878059917 - 2⁶ = 42878059853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878059907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2013198 + ... + 2034384.

It is an arithmetic number, because the mean of its divisors is an integer number (2227791072).

Almost surely, 2^42878059917 is an apocalyptic number.

It is an amenable number.

42878059917 is a deficient number, since it is larger than the sum of its proper divisors (28411254387).

42878059917 is a wasteful number, since it uses less digits than its factorization.

42878059917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29969.

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 42878059917 in words is "forty-two billion, eight hundred seventy-eight million, fifty-nine thousand, nine hundred seventeen".