245899120741 has 16 divisors (see below), whose sum is σ = 250817379120. Its totient is φ = 241033605120.

The previous prime is 245899120721. The next prime is 245899120751. The reversal of 245899120741 is 147021998542.

It can be written as a sum of positive squares in 8 ways, for example, as 25707312225 + 220191808516 = 160335^2 + 469246^2 .

It is a cyclic number.

It is not a de Polignac number, because 245899120741 - 2¹¹ = 245899118693 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 (245899120721) 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 15 ways as a sum of consecutive naturals, for example, 9216781 + ... + 9243421.

It is an arithmetic number, because the mean of its divisors is an integer number (15676086195).

Almost surely, 2^245899120741 is an apocalyptic number.

It is an amenable number.

245899120741 is a deficient number, since it is larger than the sum of its proper divisors (4918258379).

245899120741 is a wasteful number, since it uses less digits than its factorization.

245899120741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27624.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 245899120741 in words is "two hundred forty-five billion, eight hundred ninety-nine million, one hundred twenty thousand, seven hundred forty-one".