6422768387 has 16 divisors (see below), whose sum is σ = 7604127744. Its totient is φ = 5308632000.

The previous prime is 6422768371. The next prime is 6422768399. The reversal of 6422768387 is 7838672246.

It is a happy number.

It is not a de Polignac number, because 6422768387 - 2⁴ = 6422768371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6422768357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8312 + ... + 113642.

It is an arithmetic number, because the mean of its divisors is an integer number (475257984).

Almost surely, 2^6422768387 is an apocalyptic number.

6422768387 is a deficient number, since it is larger than the sum of its proper divisors (1181359357).

6422768387 is a wasteful number, since it uses less digits than its factorization.

6422768387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105650.

The product of its digits is 5419008, while the sum is 53.

The square root of 6422768387 is about 80142.1760810124. The cubic root of 6422768387 is about 1858.8346254284.

The spelling of 6422768387 in words is "six billion, four hundred twenty-two million, seven hundred sixty-eight thousand, three hundred eighty-seven".