42555431336 has 64 divisors (see below), whose sum is σ = 91728504000. Its totient is φ = 18304911360.

The previous prime is 42555431333. The next prime is 42555431483. The reversal of 42555431336 is 63313455524.

It is a junction number, because it is equal to n+sod(n) for n = 42555431293 and 42555431302.

It is not an unprimeable number, because it can be changed into a prime (42555431333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539590 + ... + 1566986.

It is an arithmetic number, because the mean of its divisors is an integer number (1433257875).

Almost surely, 2^42555431336 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 42555431336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45864252000).

42555431336 is an abundant number, since it is smaller than the sum of its proper divisors (49173072664).

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

42555431336 is a wasteful number, since it uses less digits than its factorization.

42555431336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28362 (or 28358 counting only the distinct ones).

The product of its digits is 648000, while the sum is 41.

The spelling of 42555431336 in words is "forty-two billion, five hundred fifty-five million, four hundred thirty-one thousand, three hundred thirty-six".