42272121547 has 16 divisors (see below), whose sum is σ = 43467798528. Its totient is φ = 41092777440.

The previous prime is 42272121517. The next prime is 42272121553. The reversal of 42272121547 is 74512127224.

It is a cyclic number.

It is not a de Polignac number, because 42272121547 - 2¹¹ = 42272119499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42272121517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852118 + ... + 2866900.

It is an arithmetic number, because the mean of its divisors is an integer number (2716737408).

Almost surely, 2^42272121547 is an apocalyptic number.

42272121547 is a deficient number, since it is larger than the sum of its proper divisors (1195676981).

42272121547 is a wasteful number, since it uses less digits than its factorization.

42272121547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15330.

The product of its digits is 62720, while the sum is 37.

The spelling of 42272121547 in words is "forty-two billion, two hundred seventy-two million, one hundred twenty-one thousand, five hundred forty-seven".