2867390681 has 4 divisors (see below), whose sum is σ = 3018306000. Its totient is φ = 2716475364.

The previous prime is 2867390671. The next prime is 2867390693. The reversal of 2867390681 is 1860937682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2867390681 is a prime.

It is a super-2 number, since 2×2867390681² = 16443858634971287522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2867390621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75457631 + ... + 75457668.

It is an arithmetic number, because the mean of its divisors is an integer number (754576500).

Almost surely, 2^2867390681 is an apocalyptic number.

It is an amenable number.

2867390681 is a deficient number, since it is larger than the sum of its proper divisors (150915319).

2867390681 is a wasteful number, since it uses less digits than its factorization.

2867390681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150915318.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2867390681 is about 53548.0221950354. The cubic root of 2867390681 is about 1420.6778951003.

The spelling of 2867390681 in words is "two billion, eight hundred sixty-seven million, three hundred ninety thousand, six hundred eighty-one".