245435320641 has 8 divisors (see below), whose sum is σ = 373996679104. Its totient is φ = 140248754640.

The previous prime is 245435320639. The next prime is 245435320649. The reversal of 245435320641 is 146023534542.

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

It is not a de Polignac number, because 245435320641 - 2¹ = 245435320639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245435320641.

It is not an unprimeable number, because it can be changed into a prime (245435320649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5843698090 + ... + 5843698131.

It is an arithmetic number, because the mean of its divisors is an integer number (46749584888).

Almost surely, 2^245435320641 is an apocalyptic number.

245435320641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

245435320641 is a deficient number, since it is larger than the sum of its proper divisors (128561358463).

245435320641 is a wasteful number, since it uses less digits than its factorization.

245435320641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11687396231.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 245435320641 in words is "two hundred forty-five billion, four hundred thirty-five million, three hundred twenty thousand, six hundred forty-one".