42021578088 has 128 divisors (see below), whose sum is σ = 135229612800. Its totient is φ = 11841666048.

The previous prime is 42021578077. The next prime is 42021578117. The reversal of 42021578088 is 88087512024.

It is a happy number.

42021578088 is a `hidden beast` number, since 420 + 21 + 57 + 80 + 88 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79981 + ... + 300732.

It is an arithmetic number, because the mean of its divisors is an integer number (1056481350).

Almost surely, 2^42021578088 is an apocalyptic number.

It is an amenable number.

42021578088 is an abundant number, since it is smaller than the sum of its proper divisors (93208034712).

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

42021578088 is a wasteful number, since it uses less digits than its factorization.

42021578088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380808 (or 380798 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 42021578088 in words is "forty-two billion, twenty-one million, five hundred seventy-eight thousand, eighty-eight".