42878516464775 has 6 divisors (see below), whose sum is σ = 53169360416352. Its totient is φ = 34302813171800.

The previous prime is 42878516464757. The next prime is 42878516464793. The reversal of 42878516464775 is 57746461587824.

It is an interprime number because it is at equal distance from previous prime (42878516464757) and next prime (42878516464793).

It is not a de Polignac number, because 42878516464775 - 2⁶ = 42878516464711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857570329271 + ... + 857570329320.

It is an arithmetic number, because the mean of its divisors is an integer number (8861560069392).

Almost surely, 2^{42878516464775} is an apocalyptic number.

42878516464775 is a deficient number, since it is larger than the sum of its proper divisors (10290843951577).

42878516464775 is a wasteful number, since it uses less digits than its factorization.

42878516464775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715140658601 (or 1715140658596 counting only the distinct ones).

The product of its digits is 2528870400, while the sum is 74.

The spelling of 42878516464775 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixteen million, four hundred sixty-four thousand, seven hundred seventy-five".