245258175246442 has 4 divisors (see below), whose sum is σ = 367887262869666. Its totient is φ = 122629087623220.

The previous prime is 245258175246437. The next prime is 245258175246443. The reversal of 245258175246442 is 244642571852542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 237396325644241 + 7861849602201 = 15407671^2 + 2803899^2 .

It is not an unprimeable number, because it can be changed into a prime (245258175246443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61314543811609 + ... + 61314543811612.

Almost surely, 2^{245258175246442} is an apocalyptic number.

245258175246442 is a deficient number, since it is larger than the sum of its proper divisors (122629087623224).

245258175246442 is a wasteful number, since it uses less digits than its factorization.

245258175246442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122629087623223.

The product of its digits is 172032000, while the sum is 61.

The spelling of 245258175246442 in words is "two hundred forty-five trillion, two hundred fifty-eight billion, one hundred seventy-five million, two hundred forty-six thousand, four hundred forty-two".