245634329538 has 48 divisors (see below), whose sum is σ = 573262345656. Its totient is φ = 75564552960.

The previous prime is 245634329513. The next prime is 245634329561. The reversal of 245634329538 is 835923436542.

245634329538 is a `hidden beast` number, since 2 + 4 + 5 + 6 + 343 + 295 + 3 + 8 = 666.

245634329538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 97645625289 + 147988704249 = 312483^2 + 384693^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1085656 + ... + 1292252.

Almost surely, 2^245634329538 is an apocalyptic number.

245634329538 is an abundant number, since it is smaller than the sum of its proper divisors (327628016118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245634329538 is a wasteful number, since it uses less digits than its factorization.

245634329538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211699 (or 211696 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 245634329538 in words is "two hundred forty-five billion, six hundred thirty-four million, three hundred twenty-nine thousand, five hundred thirty-eight".