42559519400 has 48 divisors (see below), whose sum is σ = 100817905500. Its totient is φ = 16702599680.

The previous prime is 42559519393. The next prime is 42559519441. The reversal of 42559519400 is 491595524.

It can be written as a sum of positive squares in 6 ways, for example, as 21066200164 + 21493319236 = 145142^2 + 146606^2 .

It is a super-2 number, since 2×42559519400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1996925 + ... + 2018124.

Almost surely, 2^42559519400 is an apocalyptic number.

42559519400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42559519400 is an abundant number, since it is smaller than the sum of its proper divisors (58258386100).

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

42559519400 is a wasteful number, since it uses less digits than its factorization.

42559519400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015118 (or 4015109 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 42559519400 in words is "forty-two billion, five hundred fifty-nine million, five hundred nineteen thousand, four hundred".