42589985220 has 96 divisors (see below), whose sum is σ = 137071267200. Its totient is φ = 10965693312.

The previous prime is 42589985213. The next prime is 42589985227. The reversal of 42589985220 is 2258998524.

It is a happy number.

42589985220 is a `hidden beast` number, since 4 + 2 + 589 + 9 + 8 + 52 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (42589985213) and next prime (42589985227).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (42589985227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1344174 + ... + 1375493.

It is an arithmetic number, because the mean of its divisors is an integer number (1427825700).

Almost surely, 2^42589985220 is an apocalyptic number.

It is an amenable number.

42589985220 is an abundant number, since it is smaller than the sum of its proper divisors (94481281980).

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

42589985220 is a wasteful number, since it uses less digits than its factorization.

42589985220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719714 (or 2719706 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 42589985220 in words is "forty-two billion, five hundred eighty-nine million, nine hundred eighty-five thousand, two hundred twenty".