42112092780 has 60 divisors (see below), whose sum is σ = 132107199840. Its totient is φ = 11229890976.

The previous prime is 42112092779. The next prime is 42112092787. The reversal of 42112092780 is 8729021124.

42112092780 is a `hidden beast` number, since 421 + 1 + 209 + 27 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×42112092780² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42112092787) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 12995940 + ... + 12999179.

It is an arithmetic number, because the mean of its divisors is an integer number (2201786664).

Almost surely, 2^42112092780 is an apocalyptic number.

It is an amenable number.

42112092780 is an abundant number, since it is smaller than the sum of its proper divisors (89995107060).

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

42112092780 is a wasteful number, since it uses less digits than its factorization.

42112092780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25995140 (or 25995129 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 42112092780 in words is "forty-two billion, one hundred twelve million, ninety-two thousand, seven hundred eighty".