82845730381 has 8 divisors (see below), whose sum is σ = 87222582720. Its totient is φ = 78470533152.

The previous prime is 82845730379. The next prime is 82845730391. The reversal of 82845730381 is 18303754828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82845730381 - 2¹ = 82845730379 is a prime.

It is a super-2 number, since 2×82845730381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82845730391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310360 + ... + 511873.

It is an arithmetic number, because the mean of its divisors is an integer number (10902822840).

Almost surely, 2^82845730381 is an apocalyptic number.

It is an amenable number.

82845730381 is a deficient number, since it is larger than the sum of its proper divisors (4376852339).

82845730381 is a wasteful number, since it uses less digits than its factorization.

82845730381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827555.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 82845730381 in words is "eighty-two billion, eight hundred forty-five million, seven hundred thirty thousand, three hundred eighty-one".