42149345172481 has 8 divisors (see below), whose sum is σ = 42274420451424. Its totient is φ = 42024290626560.

The previous prime is 42149345172433. The next prime is 42149345172511. The reversal of 42149345172481 is 18427154394124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42149345172481 - 2¹¹ = 42149345170433 is a prime.

It is a super-2 number, since 2×42149345172481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42149345172581) 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, 1106560 + ... + 9247873.

It is an arithmetic number, because the mean of its divisors is an integer number (5284302556428).

Almost surely, 2^{42149345172481} is an apocalyptic number.

It is an amenable number.

42149345172481 is a deficient number, since it is larger than the sum of its proper divisors (125075278943).

42149345172481 is a wasteful number, since it uses less digits than its factorization.

42149345172481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366511.

The product of its digits is 7741440, while the sum is 55.

The spelling of 42149345172481 in words is "forty-two trillion, one hundred forty-nine billion, three hundred forty-five million, one hundred seventy-two thousand, four hundred eighty-one".