81096677376 has 384 divisors, whose sum is σ = 255722987520. Its totient is φ = 22531276800.

The previous prime is 81096677371. The next prime is 81096677419. The reversal of 81096677376 is 67377669018.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81096677371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211740481 + ... + 211740863.

It is an arithmetic number, because the mean of its divisors is an integer number (665945280).

Almost surely, 2^81096677376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81096677376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127861493760).

81096677376 is an abundant number, since it is smaller than the sum of its proper divisors (174626310144).

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

81096677376 is a wasteful number, since it uses less digits than its factorization.

81096677376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 81096677376 in words is "eighty-one billion, ninety-six million, six hundred seventy-seven thousand, three hundred seventy-six".