42878787133535 has 16 divisors (see below), whose sum is σ = 51570421211232. Its totient is φ = 34225790908800.

The previous prime is 42878787133531. The next prime is 42878787133541. The reversal of 42878787133535 is 53533178787824.

It is not a de Polignac number, because 42878787133535 - 2² = 42878787133531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878787133531) 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, 27351500 + ... + 28876670.

It is an arithmetic number, because the mean of its divisors is an integer number (3223151325702).

Almost surely, 2^{42878787133535} is an apocalyptic number.

42878787133535 is a deficient number, since it is larger than the sum of its proper divisors (8691634077697).

42878787133535 is a wasteful number, since it uses less digits than its factorization.

42878787133535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537834.

The product of its digits is 948326400, while the sum is 71.

The spelling of 42878787133535 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred eighty-seven million, one hundred thirty-three thousand, five hundred thirty-five".