42878514248757 has 24 divisors (see below), whose sum is σ = 67638873781440. Its totient is φ = 25959005210880.

The previous prime is 42878514248749. The next prime is 42878514248831. The reversal of 42878514248757 is 75784241587824.

It is a happy number.

42878514248757 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 8 + 51 + 42 + 487 + 57 = 666.

It is not a de Polignac number, because 42878514248757 - 2³ = 42878514248749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878514248657) 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, 233016913 + ... + 233200854.

It is an arithmetic number, because the mean of its divisors is an integer number (2818286407560).

Almost surely, 2^{42878514248757} is an apocalyptic number.

It is an amenable number.

42878514248757 is a deficient number, since it is larger than the sum of its proper divisors (24760359532683).

42878514248757 is a wasteful number, since it uses less digits than its factorization.

42878514248757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466218713 (or 466218710 counting only the distinct ones).

The product of its digits is 1123942400, while the sum is 72.

The spelling of 42878514248757 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fourteen million, two hundred forty-eight thousand, seven hundred fifty-seven".