42099723441 has 12 divisors (see below), whose sum is σ = 60818722432. Its totient is φ = 28062785016.

The previous prime is 42099723439. The next prime is 42099723451. The reversal of 42099723441 is 14432799024.

42099723441 is a `hidden beast` number, since 420 + 99 + 72 + 34 + 41 = 666.

It is not a de Polignac number, because 42099723441 - 2¹ = 42099723439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42099723451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235081 + ... + 373446.

Almost surely, 2^42099723441 is an apocalyptic number.

It is an amenable number.

42099723441 is a deficient number, since it is larger than the sum of its proper divisors (18718998991).

42099723441 is a wasteful number, since it uses less digits than its factorization.

42099723441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616220 (or 616217 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 42099723441 in words is "forty-two billion, ninety-nine million, seven hundred twenty-three thousand, four hundred forty-one".