42246149571 has 12 divisors (see below), whose sum is σ = 61040513248. Its totient is φ = 28155654864.

The previous prime is 42246149551. The next prime is 42246149581. The reversal of 42246149571 is 17594164224.

42246149571 is a `hidden beast` number, since 4 + 2 + 24 + 614 + 9 + 5 + 7 + 1 = 666.

It is not a de Polignac number, because 42246149571 - 2⁷ = 42246149443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42246149551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671980 + ... + 732153.

Almost surely, 2^42246149571 is an apocalyptic number.

42246149571 is a deficient number, since it is larger than the sum of its proper divisors (18794363677).

42246149571 is a wasteful number, since it uses less digits than its factorization.

42246149571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407482 (or 1407479 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 42246149571 in words is "forty-two billion, two hundred forty-six million, one hundred forty-nine thousand, five hundred seventy-one".