42668578176 has 64 divisors (see below), whose sum is σ = 129529620480. Its totient is φ = 12191021568.

The previous prime is 42668578159. The next prime is 42668578177. The reversal of 42668578176 is 67187586624.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×42668578176² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42668578177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7934176 + ... + 7939551.

It is an arithmetic number, because the mean of its divisors is an integer number (2023900320).

Almost surely, 2^42668578176 is an apocalyptic number.

It is an amenable number.

42668578176 is an abundant number, since it is smaller than the sum of its proper divisors (86861042304).

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

42668578176 is a wasteful number, since it uses less digits than its factorization.

42668578176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873751 (or 15873739 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The spelling of 42668578176 in words is "forty-two billion, six hundred sixty-eight million, five hundred seventy-eight thousand, one hundred seventy-six".