42742243280 has 80 divisors (see below), whose sum is σ = 109306093248. Its totient is φ = 15542595200.

The previous prime is 42742243277. The next prime is 42742243303. The reversal of 42742243280 is 8234224724.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94226 + ... + 307185.

Almost surely, 2^42742243280 is an apocalyptic number.

42742243280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42742243280 is an abundant number, since it is smaller than the sum of its proper divisors (66563849968).

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

42742243280 is a wasteful number, since it uses less digits than its factorization.

42742243280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401457 (or 401429 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 38.

The spelling of 42742243280 in words is "forty-two billion, seven hundred forty-two million, two hundred forty-three thousand, two hundred eighty".