867086722747 has 16 divisors (see below), whose sum is σ = 1011764030400. Its totient is φ = 742787820096.

The previous prime is 867086722739. The next prime is 867086722753. The reversal of 867086722747 is 747227680768.

It is not a de Polignac number, because 867086722747 - 2³ = 867086722739 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867086782747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134938 + ... + 1323775.

It is an arithmetic number, because the mean of its divisors is an integer number (63235251900).

Almost surely, 2^867086722747 is an apocalyptic number.

867086722747 is a deficient number, since it is larger than the sum of its proper divisors (144677307653).

867086722747 is a wasteful number, since it uses less digits than its factorization.

867086722747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460467 (or 1460453 counting only the distinct ones).

The product of its (nonzero) digits is 88510464, while the sum is 64.

The spelling of 867086722747 in words is "eight hundred sixty-seven billion, eighty-six million, seven hundred twenty-two thousand, seven hundred forty-seven".