42521214140 has 24 divisors (see below), whose sum is σ = 90552222432. Its totient is φ = 16768928960.

The previous prime is 42521214137. The next prime is 42521214149. The reversal of 42521214140 is 4141212524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42521214149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14970839 + ... + 14973678.

It is an arithmetic number, because the mean of its divisors is an integer number (3773009268).

Almost surely, 2^42521214140 is an apocalyptic number.

It is an amenable number.

42521214140 is an abundant number, since it is smaller than the sum of its proper divisors (48031008292).

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

42521214140 is a wasteful number, since it uses less digits than its factorization.

42521214140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29944597 (or 29944595 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 42521214140 its reverse (4141212524), we get a palindrome (46662426664).

The spelling of 42521214140 in words is "forty-two billion, five hundred twenty-one million, two hundred fourteen thousand, one hundred forty".