245781145379 has 16 divisors (see below), whose sum is σ = 306441895680. Its totient is φ = 191509366560.

The previous prime is 245781145349. The next prime is 245781145397. The reversal of 245781145379 is 973541187542.

It is a cyclic number.

It is not a de Polignac number, because 245781145379 - 2¹² = 245781141283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245781145339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2147897 + ... + 2259429.

It is an arithmetic number, because the mean of its divisors is an integer number (19152618480).

Almost surely, 2^245781145379 is an apocalyptic number.

245781145379 is a deficient number, since it is larger than the sum of its proper divisors (60660750301).

245781145379 is a wasteful number, since it uses less digits than its factorization.

245781145379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140170.

The product of its digits is 8467200, while the sum is 56.

The spelling of 245781145379 in words is "two hundred forty-five billion, seven hundred eighty-one million, one hundred forty-five thousand, three hundred seventy-nine".