42749525220 has 48 divisors (see below), whose sum is σ = 119908396608. Its totient is φ = 11379899520.

The previous prime is 42749525183. The next prime is 42749525267. The reversal of 42749525220 is 2252594724.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 589639 + ... + 658158.

It is an arithmetic number, because the mean of its divisors is an integer number (2498091596).

Almost surely, 2^42749525220 is an apocalyptic number.

It is an amenable number.

42749525220 is an abundant number, since it is smaller than the sum of its proper divisors (77158871388).

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

42749525220 is a wasteful number, since it uses less digits than its factorization.

42749525220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248380 (or 1248378 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 42749525220 in words is "forty-two billion, seven hundred forty-nine million, five hundred twenty-five thousand, two hundred twenty".