42721435350 has 72 divisors (see below), whose sum is σ = 125212657752. Its totient is φ = 10356710400.

The previous prime is 42721435331. The next prime is 42721435373. The reversal of 42721435350 is 5353412724.

42721435350 is a `hidden beast` number, since 4 + 272 + 1 + 4 + 35 + 350 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4310347 + ... + 4320246.

It is an arithmetic number, because the mean of its divisors is an integer number (1739064691).

Almost surely, 2^42721435350 is an apocalyptic number.

42721435350 is an abundant number, since it is smaller than the sum of its proper divisors (82491222402).

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

42721435350 is a wasteful number, since it uses less digits than its factorization.

42721435350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8630622 (or 8630614 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 42721435350 in words is "forty-two billion, seven hundred twenty-one million, four hundred thirty-five thousand, three hundred fifty".