42131542266 has 48 divisors (see below), whose sum is σ = 99629880480. Its totient is φ = 12761206560.

The previous prime is 42131542261. The next prime is 42131542273. The reversal of 42131542266 is 66224513124.

42131542266 is a `hidden beast` number, since 4 + 21 + 31 + 542 + 2 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 42131542266.

It is not an unprimeable number, because it can be changed into a prime (42131542261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387900 + ... + 484488.

It is an arithmetic number, because the mean of its divisors is an integer number (2075622510).

Almost surely, 2^42131542266 is an apocalyptic number.

42131542266 is an abundant number, since it is smaller than the sum of its proper divisors (57498338214).

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

42131542266 is a wasteful number, since it uses less digits than its factorization.

42131542266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98811 (or 98808 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 42131542266 in words is "forty-two billion, one hundred thirty-one million, five hundred forty-two thousand, two hundred sixty-six".