42398799520 has 192 divisors, whose sum is σ = 125390426112. Its totient is φ = 13161600000.

The previous prime is 42398799517. The next prime is 42398799523. The reversal of 42398799520 is 2599789324.

42398799520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42398799517) and next prime (42398799523).

It is not an unprimeable number, because it can be changed into a prime (42398799523) 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, 3085465 + ... + 3099175.

It is an arithmetic number, because the mean of its divisors is an integer number (653075136).

Almost surely, 2^42398799520 is an apocalyptic number.

42398799520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42398799520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62695213056).

42398799520 is an abundant number, since it is smaller than the sum of its proper divisors (82991626592).

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

42398799520 is a wasteful number, since it uses less digits than its factorization.

42398799520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13995 (or 13987 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 42398799520 in words is "forty-two billion, three hundred ninety-eight million, seven hundred ninety-nine thousand, five hundred twenty".