82015376378 has 32 divisors (see below), whose sum is σ = 136130730624. Its totient is φ = 36812964672.

The previous prime is 82015376369. The next prime is 82015376407. The reversal of 82015376378 is 87367351028.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2162051 + ... + 2199657.

It is an arithmetic number, because the mean of its divisors is an integer number (4254085332).

Almost surely, 2^82015376378 is an apocalyptic number.

82015376378 is a deficient number, since it is larger than the sum of its proper divisors (54115354246).

82015376378 is a wasteful number, since it uses less digits than its factorization.

82015376378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39926.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 82015376378 in words is "eighty-two billion, fifteen million, three hundred seventy-six thousand, three hundred seventy-eight".