1209252484480 has 64 divisors (see below), whose sum is σ = 2891023066800. Its totient is φ = 483675252736.

The previous prime is 1209252484477. The next prime is 1209252484487. The reversal of 1209252484480 is 844842529021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209252484487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15970551 + ... + 16046089.

Almost surely, 2^{1209252484480} is an apocalyptic number.

1209252484480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1209252484480 is an abundant number, since it is smaller than the sum of its proper divisors (1681770582320).

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

1209252484480 is an equidigital number, since it uses as much as digits as its factorization.

1209252484480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100571 (or 100559 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 1209252484480 in words is "one trillion, two hundred nine billion, two hundred fifty-two million, four hundred eighty-four thousand, four hundred eighty".