42493428198 has 128 divisors (see below), whose sum is σ = 104404809600. Its totient is φ = 12727756800.

The previous prime is 42493428193. The next prime is 42493428227. The reversal of 42493428198 is 89182439424.

It is a happy number.

42493428198 is a `hidden beast` number, since 4 + 24 + 9 + 3 + 428 + 198 = 666.

42493428198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42493428193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15569698 + ... + 15572426.

It is an arithmetic number, because the mean of its divisors is an integer number (815662575).

Almost surely, 2^42493428198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42493428198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52202404800).

42493428198 is an abundant number, since it is smaller than the sum of its proper divisors (61911381402).

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

42493428198 is a wasteful number, since it uses less digits than its factorization.

42493428198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335 (or 3329 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 42493428198 in words is "forty-two billion, four hundred ninety-three million, four hundred twenty-eight thousand, one hundred ninety-eight".