1078446382640 has 80 divisors (see below), whose sum is σ = 2749217565600. Its totient is φ = 390171586560.

The previous prime is 1078446382609. The next prime is 1078446382697. The reversal of 1078446382640 is 462836448701.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2937065 + ... + 3283784.

It is an arithmetic number, because the mean of its divisors is an integer number (34365219570).

Almost surely, 2^{1078446382640} is an apocalyptic number.

1078446382640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078446382640 is an abundant number, since it is smaller than the sum of its proper divisors (1670771182960).

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

1078446382640 is a wasteful number, since it uses less digits than its factorization.

1078446382640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221070 (or 6221064 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 1078446382640 in words is "one trillion, seventy-eight billion, four hundred forty-six million, three hundred eighty-two thousand, six hundred forty".