82621296000 has 640 divisors, whose sum is σ = 315334150560. Its totient is φ = 21424435200.

The previous prime is 82621295971. The next prime is 82621296011. The reversal of 82621296000 is 69212628.

It is a happy number.

82621296000 is a `hidden beast` number, since 8 + 2 + 6 + 21 + 29 + 600 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

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 79 ways as a sum of consecutive naturals, for example, 47951139 + ... + 47952861.

Almost surely, 2^82621296000 is an apocalyptic number.

82621296000 is a gapful number since it is divisible by the number (80) 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 82621296000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157667075280).

82621296000 is an abundant number, since it is smaller than the sum of its proper divisors (232712854560).

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

82621296000 is a wasteful number, since it uses less digits than its factorization.

82621296000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 82621296000 in words is "eighty-two billion, six hundred twenty-one million, two hundred ninety-six thousand".