245405230544 has 10 divisors (see below), whose sum is σ = 475472634210. Its totient is φ = 122702615264.

The previous prime is 245405230519. The next prime is 245405230547. The reversal of 245405230544 is 445032504542.

It can be written as a sum of positive squares in only one way, i.e., 244518382144 + 886848400 = 494488^2 + 29780^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245405230498 and 245405230507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245405230547) 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 as a sum of consecutive naturals, namely, 7668913439 + ... + 7668913470.

It is an arithmetic number, because the mean of its divisors is an integer number (47547263421).

Almost surely, 2^245405230544 is an apocalyptic number.

It is an amenable number.

245405230544 is a deficient number, since it is larger than the sum of its proper divisors (230067403666).

245405230544 is a wasteful number, since it uses less digits than its factorization.

245405230544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15337826917 (or 15337826911 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 245405230544 in words is "two hundred forty-five billion, four hundred five million, two hundred thirty thousand, five hundred forty-four".