245869383968542 has 12 divisors (see below), whose sum is σ = 391774572033840. Its totient is φ = 115703239514336.

The previous prime is 245869383968531. The next prime is 245869383968557.

245869383968542 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212689777942 + ... + 212689779097.

It is an arithmetic number, because the mean of its divisors is an integer number (32647881002820).

Almost surely, 2^{245869383968542} is an apocalyptic number.

245869383968542 is a deficient number, since it is larger than the sum of its proper divisors (145905188065298).

245869383968542 is a wasteful number, since it uses less digits than its factorization.

245869383968542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425379557075 (or 425379557058 counting only the distinct ones).

The product of its digits is 21499084800, while the sum is 82.

The spelling of 245869383968542 in words is "two hundred forty-five trillion, eight hundred sixty-nine billion, three hundred eighty-three million, nine hundred sixty-eight thousand, five hundred forty-two".