42878514406409 has 8 divisors (see below), whose sum is σ = 46777634329440. Its totient is φ = 38979573343200.

The previous prime is 42878514406363. The next prime is 42878514406447. The reversal of 42878514406409 is 90460441587824.

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

It is a cyclic number.

It is not a de Polignac number, because 42878514406409 - 2¹² = 42878514402313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42878514406309) 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, 44213447 + ... + 45172844.

It is an arithmetic number, because the mean of its divisors is an integer number (5847204291180).

Almost surely, 2^{42878514406409} is an apocalyptic number.

It is an amenable number.

42878514406409 is a deficient number, since it is larger than the sum of its proper divisors (3899119923031).

42878514406409 is a wasteful number, since it uses less digits than its factorization.

42878514406409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89429911.

The product of its (nonzero) digits is 61931520, while the sum is 62.

The spelling of 42878514406409 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fourteen million, four hundred six thousand, four hundred nine".