42723441849 has 32 divisors (see below), whose sum is σ = 62749048320. Its totient is φ = 25641504000.

The previous prime is 42723441823. The next prime is 42723441853. The reversal of 42723441849 is 94814432724.

It is not a de Polignac number, because 42723441849 - 2⁷ = 42723441721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42723441798 and 42723441807.

It is not an unprimeable number, because it can be changed into a prime (42723441809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1827774 + ... + 1851000.

It is an arithmetic number, because the mean of its divisors is an integer number (1960907760).

Almost surely, 2^42723441849 is an apocalyptic number.

It is an amenable number.

42723441849 is a deficient number, since it is larger than the sum of its proper divisors (20025606471).

42723441849 is a wasteful number, since it uses less digits than its factorization.

42723441849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23781.

The product of its digits is 1548288, while the sum is 48.

The spelling of 42723441849 in words is "forty-two billion, seven hundred twenty-three million, four hundred forty-one thousand, eight hundred forty-nine".