42129059886 has 48 divisors (see below), whose sum is σ = 95038948368. Its totient is φ = 13475894400.

The previous prime is 42129059851. The next prime is 42129059899. The reversal of 42129059886 is 68895092124.

It is a happy number.

42129059886 is a `hidden beast` number, since 4 + 21 + 29 + 0 + 598 + 8 + 6 = 666.

42129059886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422896 + ... + 512931.

It is an arithmetic number, because the mean of its divisors is an integer number (1979978091).

Almost surely, 2^42129059886 is an apocalyptic number.

42129059886 is an abundant number, since it is smaller than the sum of its proper divisors (52909888482).

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

42129059886 is a wasteful number, since it uses less digits than its factorization.

42129059886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935937 (or 935934 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 42129059886 in words is "forty-two billion, one hundred twenty-nine million, fifty-nine thousand, eight hundred eighty-six".