42878764382751 has 24 divisors (see below), whose sum is σ = 67567733925120. Its totient is φ = 25986669886800.

The previous prime is 42878764382737. The next prime is 42878764382813. The reversal of 42878764382751 is 15728346787824.

42878764382751 is a `hidden beast` number, since 4 + 2 + 8 + 78 + 76 + 438 + 2 + 7 + 51 = 666.

It is not a de Polignac number, because 42878764382751 - 2¹⁷ = 42878764251679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42878764382751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878764382551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1828960 + ... + 9439418.

It is an arithmetic number, because the mean of its divisors is an integer number (2815322246880).

Almost surely, 2^{42878764382751} is an apocalyptic number.

42878764382751 is a deficient number, since it is larger than the sum of its proper divisors (24688969542369).

42878764382751 is a wasteful number, since it uses less digits than its factorization.

42878764382751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667387 (or 7667384 counting only the distinct ones).

The product of its digits is 1011548160, while the sum is 72.

The spelling of 42878764382751 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred sixty-four million, three hundred eighty-two thousand, seven hundred fifty-one".