798894169945 has 4 divisors (see below), whose sum is σ = 958673003940. Its totient is φ = 639115335952.

The previous prime is 798894169933. The next prime is 798894169949. The reversal of 798894169945 is 549961498897.

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

It can be written as a sum of positive squares in 2 ways, for example, as 249077851929 + 549816318016 = 499077^2 + 741496^2 .

It is a cyclic number.

It is not a de Polignac number, because 798894169945 - 2¹⁹ = 798893645657 is a prime.

It is a super-2 number, since 2×798894169945² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (798894169949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79889416990 + ... + 79889416999.

It is an arithmetic number, because the mean of its divisors is an integer number (239668250985).

Almost surely, 2^798894169945 is an apocalyptic number.

It is an amenable number.

798894169945 is a deficient number, since it is larger than the sum of its proper divisors (159778833995).

798894169945 is a wasteful number, since it uses less digits than its factorization.

798894169945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159778833994.

The product of its digits is 1410877440, while the sum is 79.

The spelling of 798894169945 in words is "seven hundred ninety-eight billion, eight hundred ninety-four million, one hundred sixty-nine thousand, nine hundred forty-five".