7864422877 has 4 divisors (see below), whose sum is σ = 7997718240. Its totient is φ = 7731127516.

The previous prime is 7864422871. The next prime is 7864422883. The reversal of 7864422877 is 7782244687.

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 an interprime number because it is at equal distance from previous prime (7864422871) and next prime (7864422883).

It is a cyclic number.

It is not a de Polignac number, because 7864422877 - 2¹⁹ = 7863898589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7864422871) 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, 66647593 + ... + 66647710.

It is an arithmetic number, because the mean of its divisors is an integer number (1999429560).

Almost surely, 2^7864422877 is an apocalyptic number.

It is an amenable number.

7864422877 is a deficient number, since it is larger than the sum of its proper divisors (133295363).

7864422877 is a wasteful number, since it uses less digits than its factorization.

7864422877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133295362.

The product of its digits is 8429568, while the sum is 55.

The square root of 7864422877 is about 88681.5813853136. The cubic root of 7864422877 is about 1988.6374751800.

The spelling of 7864422877 in words is "seven billion, eight hundred sixty-four million, four hundred twenty-two thousand, eight hundred seventy-seven".