42499456836 has 24 divisors (see below), whose sum is σ = 99193362240. Its totient is φ = 14162490912.

The previous prime is 42499456793. The next prime is 42499456837. The reversal of 42499456836 is 63865499424.

42499456836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42499456836.

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, 454851 + ... + 540266.

It is an arithmetic number, because the mean of its divisors is an integer number (4133056760).

Almost surely, 2^42499456836 is an apocalyptic number.

It is an amenable number.

42499456836 is an abundant number, since it is smaller than the sum of its proper divisors (56693905404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42499456836 is a wasteful number, since it uses less digits than its factorization.

42499456836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998683 (or 998681 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 60.

The spelling of 42499456836 in words is "forty-two billion, four hundred ninety-nine million, four hundred fifty-six thousand, eight hundred thirty-six".