42261759680 has 56 divisors (see below), whose sum is σ = 115012366368. Its totient is φ = 14489745408.

The previous prime is 42261759619. The next prime is 42261759689. The reversal of 42261759680 is 8695716224.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (42261759689) 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, 9431189 + ... + 9435668.

Almost surely, 2^42261759680 is an apocalyptic number.

42261759680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42261759680 is an abundant number, since it is smaller than the sum of its proper divisors (72750606688).

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

42261759680 is a wasteful number, since it uses less digits than its factorization.

42261759680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18866881 (or 18866871 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 42261759680 in words is "forty-two billion, two hundred sixty-one million, seven hundred fifty-nine thousand, six hundred eighty".