42878516331455 has 64 divisors (see below), whose sum is σ = 62236675200000. Its totient is φ = 27703588543488.

The previous prime is 42878516331419. The next prime is 42878516331461. The reversal of 42878516331455 is 55413361587824.

It is not a de Polignac number, because 42878516331455 - 2¹⁰ = 42878516330431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142540796 + ... + 142841294.

It is an arithmetic number, because the mean of its divisors is an integer number (972448050000).

Almost surely, 2^{42878516331455} is an apocalyptic number.

42878516331455 is a deficient number, since it is larger than the sum of its proper divisors (19358158868545).

42878516331455 is a wasteful number, since it uses less digits than its factorization.

42878516331455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301696.

The product of its digits is 96768000, while the sum is 62.

The spelling of 42878516331455 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixteen million, three hundred thirty-one thousand, four hundred fifty-five".