42121361832 has 32 divisors (see below), whose sum is σ = 114876442080. Its totient is φ = 12764048960.

The previous prime is 42121361797. The next prime is 42121361851. The reversal of 42121361832 is 23816312124.

42121361832 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 (33).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42121361793 and 42121361802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79775043 + ... + 79775570.

It is an arithmetic number, because the mean of its divisors is an integer number (3589888815).

Almost surely, 2^42121361832 is an apocalyptic number.

It is an amenable number.

42121361832 is an abundant number, since it is smaller than the sum of its proper divisors (72755080248).

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

42121361832 is a wasteful number, since it uses less digits than its factorization.

42121361832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159550633 (or 159550629 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

Adding to 42121361832 its reverse (23816312124), we get a palindrome (65937673956).

The spelling of 42121361832 in words is "forty-two billion, one hundred twenty-one million, three hundred sixty-one thousand, eight hundred thirty-two".