1076809806648 has 96 divisors (see below), whose sum is σ = 2976499796400. Its totient is φ = 351578709504.

The previous prime is 1076809806643. The next prime is 1076809806649. The reversal of 1076809806648 is 8466089086701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1076809806643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 719140 + ... + 1634252.

Almost surely, 2^{1076809806648} is an apocalyptic number.

1076809806648 is a gapful number since it is divisible by the number (18) 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 1076809806648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488249898200).

1076809806648 is an abundant number, since it is smaller than the sum of its proper divisors (1899689989752).

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

1076809806648 is a wasteful number, since it uses less digits than its factorization.

1076809806648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915461 (or 915454 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 1076809806648 in words is "one trillion, seventy-six billion, eight hundred nine million, eight hundred six thousand, six hundred forty-eight".