245453064457 has 4 divisors (see below), whose sum is σ = 245455107840. Its totient is φ = 245451021076.

The previous prime is 245453064431. The next prime is 245453064509. The reversal of 245453064457 is 754460354542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245453064457 - 2¹¹ = 245453062409 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245453064457.

It is not an unprimeable number, because it can be changed into a prime (245453062457) 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, 829453 + ... + 1085770.

It is an arithmetic number, because the mean of its divisors is an integer number (61363776960).

Almost surely, 2^245453064457 is an apocalyptic number.

It is an amenable number.

245453064457 is a deficient number, since it is larger than the sum of its proper divisors (2043383).

245453064457 is a wasteful number, since it uses less digits than its factorization.

245453064457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043382.

The product of its (nonzero) digits is 8064000, while the sum is 49.

The spelling of 245453064457 in words is "two hundred forty-five billion, four hundred fifty-three million, sixty-four thousand, four hundred fifty-seven".