42421455500 has 24 divisors (see below), whose sum is σ = 92648459904. Its totient is φ = 16968582000.

The previous prime is 42421455497. The next prime is 42421455509. The reversal of 42421455500 is 555412424.

It is not an unprimeable number, because it can be changed into a prime (42421455509) 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, 42420956 + ... + 42421955.

It is an arithmetic number, because the mean of its divisors is an integer number (3860352496).

Almost surely, 2^42421455500 is an apocalyptic number.

It is an amenable number.

42421455500 is an abundant number, since it is smaller than the sum of its proper divisors (50227004404).

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

42421455500 is a wasteful number, since it uses less digits than its factorization.

42421455500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84842930 (or 84842918 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 42421455500 its reverse (555412424), we get a palindrome (42976867924).

The spelling of 42421455500 in words is "forty-two billion, four hundred twenty-one million, four hundred fifty-five thousand, five hundred".