245244062993 has 4 divisors (see below), whose sum is σ = 245365653540. Its totient is φ = 245122472448.

The previous prime is 245244062971. The next prime is 245244063007. The reversal of 245244062993 is 399260442542.

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 109106677969 + 136137385024 = 330313^2 + 368968^2 .

It is a cyclic number.

It is not a de Polignac number, because 245244062993 - 2²⁴ = 245227285777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245244032993) 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, 60792248 + ... + 60796281.

It is an arithmetic number, because the mean of its divisors is an integer number (61341413385).

Almost surely, 2^245244062993 is an apocalyptic number.

It is an amenable number.

245244062993 is a deficient number, since it is larger than the sum of its proper divisors (121590547).

245244062993 is a wasteful number, since it uses less digits than its factorization.

245244062993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121590546.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 245244062993 in words is "two hundred forty-five billion, two hundred forty-four million, sixty-two thousand, nine hundred ninety-three".