82421832854155 has 8 divisors (see below), whose sum is σ = 98906441472000. Its totient is φ = 65937304918656.

The previous prime is 82421832854149. The next prime is 82421832854177. The reversal of 82421832854155 is 55145823812428.

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 82421832854155 - 2²¹ = 82421830757003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82421832854155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17899915 + ... + 22028404.

It is an arithmetic number, because the mean of its divisors is an integer number (12363305184000).

Almost surely, 2^{82421832854155} is an apocalyptic number.

82421832854155 is a deficient number, since it is larger than the sum of its proper divisors (16484608617845).

82421832854155 is a wasteful number, since it uses less digits than its factorization.

82421832854155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40341173.

The product of its digits is 24576000, while the sum is 58.

The spelling of 82421832854155 in words is "eighty-two trillion, four hundred twenty-one billion, eight hundred thirty-two million, eight hundred fifty-four thousand, one hundred fifty-five".