1178448497280 has 640 divisors, whose sum is σ = 4690601784000. Its totient is φ = 280196775936.

The previous prime is 1178448497273. The next prime is 1178448497309. The reversal of 1178448497280 is 827948448711.

1178448497280 is a `hidden beast` number, since 1 + 1 + 7 + 8 + 4 + 484 + 9 + 72 + 80 = 666.

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 79 ways as a sum of consecutive naturals, for example, 16709131 + ... + 16779509.

Almost surely, 2^{1178448497280} is an apocalyptic number.

1178448497280 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 1178448497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345300892000).

1178448497280 is an abundant number, since it is smaller than the sum of its proper divisors (3512153286720).

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

1178448497280 is a wasteful number, since it uses less digits than its factorization.

1178448497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70446 (or 70425 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 63.

The spelling of 1178448497280 in words is "one trillion, one hundred seventy-eight billion, four hundred forty-eight million, four hundred ninety-seven thousand, two hundred eighty".