245717091426 has 8 divisors (see below), whose sum is σ = 491434182864. Its totient is φ = 81905697140.

The previous prime is 245717091421. The next prime is 245717091457. The reversal of 245717091426 is 624190717542.

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

245717091426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (245717091421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20476424280 + ... + 20476424291.

It is an arithmetic number, because the mean of its divisors is an integer number (61429272858).

Almost surely, 2^245717091426 is an apocalyptic number.

245717091426 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.

245717091426 is a wasteful number, since it uses less digits than its factorization.

245717091426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40952848576.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 245717091426 in words is "two hundred forty-five billion, seven hundred seventeen million, ninety-one thousand, four hundred twenty-six".