1245335474880 has 672 divisors, whose sum is σ = 4984612978176. Its totient is φ = 279486332928.

The previous prime is 1245335474879. The next prime is 1245335474921. The reversal of 1245335474880 is 884745335421.

1245335474880 is a `hidden beast` number, since 1 + 2 + 4 + 53 + 3 + 547 + 48 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×1245335474880² (a number of 25 digits) contains 22 as substring.

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 95 ways as a sum of consecutive naturals, for example, 468698512 + ... + 468701168.

Almost surely, 2^{1245335474880} is an apocalyptic number.

1245335474880 is a gapful number since it is divisible by the number (10) 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 1245335474880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492306489088).

1245335474880 is an abundant number, since it is smaller than the sum of its proper divisors (3739277503296).

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

1245335474880 is a wasteful number, since it uses less digits than its factorization.

1245335474880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 1245335474880 in words is "one trillion, two hundred forty-five billion, three hundred thirty-five million, four hundred seventy-four thousand, eight hundred eighty".