82678801387 has 32 divisors (see below), whose sum is σ = 103409073152. Its totient is φ = 64357628544.

The previous prime is 82678801349. The next prime is 82678801393. The reversal of 82678801387 is 78310887628.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82678801387 - 2⁷ = 82678801259 is a prime.

It is a super-3 number, since 3×82678801387³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (82678801307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5009593 + ... + 5026069.

It is an arithmetic number, because the mean of its divisors is an integer number (3231533536).

Almost surely, 2^82678801387 is an apocalyptic number.

82678801387 is a deficient number, since it is larger than the sum of its proper divisors (20730271765).

82678801387 is a wasteful number, since it uses less digits than its factorization.

82678801387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17387.

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 82678801387 in words is "eighty-two billion, six hundred seventy-eight million, eight hundred one thousand, three hundred eighty-seven".