42499456834 has 16 divisors (see below), whose sum is σ = 64053011448. Its totient is φ = 21148630272.

The previous prime is 42499456793. The next prime is 42499456837. The reversal of 42499456834 is 43865499424.

42499456834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41556045609 + 943411225 = 203853^2 + 30715^2 .

It is not an unprimeable number, because it can be changed into a prime (42499456837) 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, 442122 + ... + 529594.

Almost surely, 2^42499456834 is an apocalyptic number.

42499456834 is a deficient number, since it is larger than the sum of its proper divisors (21553554614).

42499456834 is a wasteful number, since it uses less digits than its factorization.

42499456834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88629.

The product of its digits is 29859840, while the sum is 58.

The spelling of 42499456834 in words is "forty-two billion, four hundred ninety-nine million, four hundred fifty-six thousand, eight hundred thirty-four".