245263253949 has 48 divisors (see below), whose sum is σ = 409220997120. Its totient is φ = 138649708800.

The previous prime is 245263253897. The next prime is 245263253959. The reversal of 245263253949 is 949352362542.

It is a happy number.

245263253949 is a `hidden beast` number, since 2 + 4 + 5 + 2 + 63 + 2 + 539 + 49 = 666.

245263253949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245263253949 - 2⁸ = 245263253693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245263253895 and 245263253904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245263253959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8123209 + ... + 8153345.

It is an arithmetic number, because the mean of its divisors is an integer number (8525437440).

Almost surely, 2^245263253949 is an apocalyptic number.

It is an amenable number.

245263253949 is a deficient number, since it is larger than the sum of its proper divisors (163957743171).

245263253949 is a wasteful number, since it uses less digits than its factorization.

245263253949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31530 (or 31527 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 245263253949 in words is "two hundred forty-five billion, two hundred sixty-three million, two hundred fifty-three thousand, nine hundred forty-nine".