6422749075771 has 16 divisors (see below), whose sum is σ = 7782526600704. Its totient is φ = 5174403744384.

The previous prime is 6422749075763. The next prime is 6422749075781. The reversal of 6422749075771 is 1775709472246.

It is a happy number.

It is not a de Polignac number, because 6422749075771 - 2³ = 6422749075763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6422749075781) 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, 36232365 + ... + 36409198.

It is an arithmetic number, because the mean of its divisors is an integer number (486407912544).

Almost surely, 2^{6422749075771} is an apocalyptic number.

6422749075771 is a deficient number, since it is larger than the sum of its proper divisors (1359777524933).

6422749075771 is a wasteful number, since it uses less digits than its factorization.

6422749075771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72642330.

The product of its (nonzero) digits is 41489280, while the sum is 61.

The spelling of 6422749075771 in words is "six trillion, four hundred twenty-two billion, seven hundred forty-nine million, seventy-five thousand, seven hundred seventy-one".