42878536860402 has 24 divisors (see below), whose sum is σ = 93135176089020. Its totient is φ = 14257202611200.

The previous prime is 42878536860391. The next prime is 42878536860433. The reversal of 42878536860402 is 20406863587824.

42878536860402 is a `hidden beast` number, since 4 + 28 + 78 + 536 + 8 + 6 + 0 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42700487462721 + 178049397681 = 6534561^2 + 421959^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42878536860402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2970243327 + ... + 2970257762.

Almost surely, 2^{42878536860402} is an apocalyptic number.

42878536860402 is an abundant number, since it is smaller than the sum of its proper divisors (50256639228618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42878536860402 is a wasteful number, since it uses less digits than its factorization.

42878536860402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940501498 (or 5940501495 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 63.

The spelling of 42878536860402 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-six million, eight hundred sixty thousand, four hundred two".