82415662748851 has 4 divisors (see below), whose sum is σ = 82651810780000. Its totient is φ = 82179514717704.

The previous prime is 82415662748791. The next prime is 82415662748957. The reversal of 82415662748851 is 15884726651428.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82415662748851 - 2¹⁹ = 82415662224563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82415662748051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118074015051 + ... + 118074015748.

It is an arithmetic number, because the mean of its divisors is an integer number (20662952695000).

Almost surely, 2^{82415662748851} is an apocalyptic number.

82415662748851 is a deficient number, since it is larger than the sum of its proper divisors (236148031149).

82415662748851 is a wasteful number, since it uses less digits than its factorization.

82415662748851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236148031148.

The product of its digits is 206438400, while the sum is 67.

The spelling of 82415662748851 in words is "eighty-two trillion, four hundred fifteen billion, six hundred sixty-two million, seven hundred forty-eight thousand, eight hundred fifty-one".