245458873691 has 4 divisors (see below), whose sum is σ = 258377761800. Its totient is φ = 232539985584.

The previous prime is 245458873651. The next prime is 245458873703. The reversal of 245458873691 is 196378854542.

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

It is a cyclic number.

It is not a de Polignac number, because 245458873691 - 2¹⁸ = 245458611547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245458873651) 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, 6459444026 + ... + 6459444063.

It is an arithmetic number, because the mean of its divisors is an integer number (64594440450).

Almost surely, 2^245458873691 is an apocalyptic number.

245458873691 is a deficient number, since it is larger than the sum of its proper divisors (12918888109).

245458873691 is a wasteful number, since it uses less digits than its factorization.

245458873691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12918888108.

The product of its digits is 58060800, while the sum is 62.

The spelling of 245458873691 in words is "two hundred forty-five billion, four hundred fifty-eight million, eight hundred seventy-three thousand, six hundred ninety-one".