245012000000 has 126 divisors (see below), whose sum is σ = 611335807614. Its totient is φ = 98003200000.

The previous prime is 245011999963. The next prime is 245012000029. The reversal of 245012000000 is 210542.

It can be written as a sum of positive squares in 7 ways, for example, as 229264761856 + 15747238144 = 478816^2 + 125488^2 .

It is a congruent number.

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 3969374 + ... + 4030626.

It is an arithmetic number, because the mean of its divisors is an integer number (4851871489).

Almost surely, 2^245012000000 is an apocalyptic number.

245012000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245012000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305667903807).

245012000000 is an abundant number, since it is smaller than the sum of its proper divisors (366323807614).

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

245012000000 is an frugal number, since it uses more digits than its factorization.

245012000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61299 (or 61260 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 245012000000 its reverse (210542), we get a palindrome (245012210542).

The spelling of 245012000000 in words is "two hundred forty-five billion, twelve million", and thus it is an aban number.