42820399104 has 468 divisors, whose sum is σ = 140884086024. Its totient is φ = 11531649024.

The previous prime is 42820399073. The next prime is 42820399117. The reversal of 42820399104 is 40199302824.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 217362334 + ... + 217362530.

Almost surely, 2^42820399104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42820399104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70442043012).

42820399104 is an abundant number, since it is smaller than the sum of its proper divisors (98063686920).

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

42820399104 is a wasteful number, since it uses less digits than its factorization.

42820399104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 42820399104 in words is "forty-two billion, eight hundred twenty million, three hundred ninety-nine thousand, one hundred four".