1081340780064 has 96 divisors (see below), whose sum is σ = 2842652957760. Its totient is φ = 359922511872.

The previous prime is 1081340780063. The next prime is 1081340780099. The reversal of 1081340780064 is 4600870431801.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1081340779998 and 1081340780025.

It is not an unprimeable number, because it can be changed into a prime (1081340780063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332003524 + ... + 332006780.

It is an arithmetic number, because the mean of its divisors is an integer number (29610968310).

Almost surely, 2^{1081340780064} is an apocalyptic number.

It is an amenable number.

1081340780064 is an abundant number, since it is smaller than the sum of its proper divisors (1761312177696).

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

1081340780064 is a wasteful number, since it uses less digits than its factorization.

1081340780064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242 (or 7234 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 1081340780064 in words is "one trillion, eighty-one billion, three hundred forty million, seven hundred eighty thousand, sixty-four".