42878287427533 has 4 divisors (see below), whose sum is σ = 42883071357888. Its totient is φ = 42873503497180.

The previous prime is 42878287427513. The next prime is 42878287427561. The reversal of 42878287427533 is 33572478287824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42878287427533 - 2⁴⁵ = 7693915338701 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 (42878287427513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391951733 + ... + 2391969658.

It is an arithmetic number, because the mean of its divisors is an integer number (10720767839472).

Almost surely, 2^{42878287427533} is an apocalyptic number.

It is an amenable number.

42878287427533 is a deficient number, since it is larger than the sum of its proper divisors (4783930355).

42878287427533 is an equidigital number, since it uses as much as digits as its factorization.

42878287427533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783930354.

The product of its digits is 1011548160, while the sum is 70.

The spelling of 42878287427533 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred eighty-seven million, four hundred twenty-seven thousand, five hundred thirty-three".