245661530826 has 32 divisors (see below), whose sum is σ = 517583707200. Its totient is φ = 77517095040.

The previous prime is 245661530789. The next prime is 245661530843. The reversal of 245661530826 is 628035166542.

245661530826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 688945 + ... + 982836.

It is an arithmetic number, because the mean of its divisors is an integer number (16174490850).

Almost surely, 2^245661530826 is an apocalyptic number.

245661530826 is an abundant number, since it is smaller than the sum of its proper divisors (271922176374).

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

245661530826 is a wasteful number, since it uses less digits than its factorization.

245661530826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673094.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 245661530826 in words is "two hundred forty-five billion, six hundred sixty-one million, five hundred thirty thousand, eight hundred twenty-six".