245105317090 has 16 divisors (see below), whose sum is σ = 441355541760. Its totient is φ = 98005244400.

The previous prime is 245105317069. The next prime is 245105317099. The reversal of 245105317090 is 90713501542.

It is not an unprimeable number, because it can be changed into a prime (245105317099) 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 7 ways as a sum of consecutive naturals, for example, 4582386 + ... + 4635565.

It is an arithmetic number, because the mean of its divisors is an integer number (27584721360).

Almost surely, 2^245105317090 is an apocalyptic number.

245105317090 is a deficient number, since it is larger than the sum of its proper divisors (196250224670).

245105317090 is a wasteful number, since it uses less digits than its factorization.

245105317090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220617.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 245105317090 in words is "two hundred forty-five billion, one hundred five million, three hundred seventeen thousand, ninety".