245436862636 has 72 divisors (see below), whose sum is σ = 529820793936. Its totient is φ = 98851737600.

The previous prime is 245436862633. The next prime is 245436862637. The reversal of 245436862636 is 636268634542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245436862633) 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 in 23 ways as a sum of consecutive naturals, for example, 2187711 + ... + 2297161.

It is an arithmetic number, because the mean of its divisors is an integer number (7358622138).

Almost surely, 2^245436862636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245436862636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264910396968).

245436862636 is an abundant number, since it is smaller than the sum of its proper divisors (284383931300).

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

245436862636 is a wasteful number, since it uses less digits than its factorization.

245436862636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110159 (or 110150 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 55.

The spelling of 245436862636 in words is "two hundred forty-five billion, four hundred thirty-six million, eight hundred sixty-two thousand, six hundred thirty-six".