7806645000000 has 1792 divisors, whose sum is σ = 35813908316160. Its totient is φ = 1620000000000.

The previous prime is 7806644999957. The next prime is 7806645000013. The reversal of 7806645000000 is 5466087.

It is a happy number.

7806645000000 is a `hidden beast` number, since 7 + 8 + 0 + 6 + 645 + 0 + 0 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 10394999625 + ... + 10395000375.

Almost surely, 2^{7806645000000} is an apocalyptic number.

7806645000000 is a gapful number since it is divisible by the number (70) 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 7806645000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17906954158080).

7806645000000 is an abundant number, since it is smaller than the sum of its proper divisors (28007263316160).

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

7806645000000 is an frugal number, since it uses more digits than its factorization.

7806645000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 7806645000000 in words is "seven trillion, eight hundred six billion, six hundred forty-five million", and thus it is an aban number.