1225043796480 has 640 divisors, whose sum is σ = 4690904334336. Its totient is φ = 266659430400.

The previous prime is 1225043796463. The next prime is 1225043796499. The reversal of 1225043796480 is 846973405221.

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 297989625 + ... + 297993735.

It is a 1-persistent number, because it is pandigital, but 2⋅1225043796480 = 2450087592960 is not.

Almost surely, 2^{1225043796480} is an apocalyptic number.

1225043796480 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 1225043796480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345452167168).

1225043796480 is an abundant number, since it is smaller than the sum of its proper divisors (3465860537856).

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

1225043796480 is a wasteful number, since it uses less digits than its factorization.

1225043796480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 1225043796480 in words is "one trillion, two hundred twenty-five billion, forty-three million, seven hundred ninety-six thousand, four hundred eighty".