207845098061 has 4 divisors (see below), whose sum is σ = 207858644124. Its totient is φ = 207831552000.

The previous prime is 207845098057. The next prime is 207845098067. The reversal of 207845098061 is 160890548702.

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 65840480836 + 142004617225 = 256594^2 + 376835^2 .

It is a cyclic number.

It is not a de Polignac number, because 207845098061 - 2² = 207845098057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207845098067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6749990 + ... + 6780711.

It is an arithmetic number, because the mean of its divisors is an integer number (51964661031).

Almost surely, 2^207845098061 is an apocalyptic number.

It is an amenable number.

207845098061 is a deficient number, since it is larger than the sum of its proper divisors (13546063).

207845098061 is a wasteful number, since it uses less digits than its factorization.

207845098061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13546062.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 207845098061 in words is "two hundred seven billion, eight hundred forty-five million, ninety-eight thousand, sixty-one".