42878305835048 has 8 divisors (see below), whose sum is σ = 80396823440730. Its totient is φ = 21439152917520.

The previous prime is 42878305835033. The next prime is 42878305835051. The reversal of 42878305835048 is 84053850387824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26322830614084 + 16555475220964 = 5130578^2 + 4068842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42878305835048² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2679894114683 + ... + 2679894114698.

Almost surely, 2^{42878305835048} is an apocalyptic number.

It is an amenable number.

42878305835048 is a deficient number, since it is larger than the sum of its proper divisors (37518517605682).

42878305835048 is a wasteful number, since it uses less digits than its factorization.

42878305835048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359788229387 (or 5359788229383 counting only the distinct ones).

The product of its (nonzero) digits is 206438400, while the sum is 65.

The spelling of 42878305835048 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred five million, eight hundred thirty-five thousand, forty-eight".