42878514404987 has 16 divisors (see below), whose sum is σ = 44510637175200. Its totient is φ = 41283680136192.

The previous prime is 42878514404963. The next prime is 42878514405031. The reversal of 42878514404987 is 78940441587824.

It is a cyclic number.

It is not a de Polignac number, because 42878514404987 - 2⁶ = 42878514404923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42878514404987.

It is not an unprimeable number, because it can be changed into a prime (42878514404387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32053718 + ... + 33364619.

It is an arithmetic number, because the mean of its divisors is an integer number (2781914823450).

Almost surely, 2^{42878514404987} is an apocalyptic number.

42878514404987 is a deficient number, since it is larger than the sum of its proper divisors (1632122770213).

42878514404987 is a wasteful number, since it uses less digits than its factorization.

42878514404987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65418622.

The product of its (nonzero) digits is 578027520, while the sum is 71.

The spelling of 42878514404987 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fourteen million, four hundred four thousand, nine hundred eighty-seven".