10256439785322 has 8 divisors (see below), whose sum is σ = 20512879570656. Its totient is φ = 3418813261772.

The previous prime is 10256439785321. The next prime is 10256439785359. The reversal of 10256439785322 is 22358793465201.

It is a sphenic number, since it is the product of 3 distinct primes.

10256439785322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (10256439785321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854703315438 + ... + 854703315449.

It is an arithmetic number, because the mean of its divisors is an integer number (2564109946332).

It is a 1-persistent number, because it is pandigital, but 2⋅10256439785322 = 20512879570644 is not.

Almost surely, 2^{10256439785322} is an apocalyptic number.

10256439785322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10256439785322 is a wasteful number, since it uses less digits than its factorization.

10256439785322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709406630892.

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 10256439785322 in words is "ten trillion, two hundred fifty-six billion, four hundred thirty-nine million, seven hundred eighty-five thousand, three hundred twenty-two".