42961685730 has 256 divisors, whose sum is σ = 111901409280. Its totient is φ = 10538035200.

The previous prime is 42961685729. The next prime is 42961685747. The reversal of 42961685730 is 3758616924.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 338280927 + ... + 338281053.

It is an arithmetic number, because the mean of its divisors is an integer number (437114880).

It is a 2-persistent number, because it is pandigital, and so is 2⋅42961685730 = 85923371460, but 3⋅42961685730 = 128885057190 is not.

Almost surely, 2^42961685730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42961685730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55950704640).

42961685730 is an abundant number, since it is smaller than the sum of its proper divisors (68939723550).

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

42961685730 is a wasteful number, since it uses less digits than its factorization.

42961685730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 42961685730 in words is "forty-two billion, nine hundred sixty-one million, six hundred eighty-five thousand, seven hundred thirty".