7842275644 has 24 divisors (see below), whose sum is σ = 16607172960. Its totient is φ = 3163270656.

The previous prime is 7842275641. The next prime is 7842275699. The reversal of 7842275644 is 4465722487.

It is a super-2 number, since 2×7842275644² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842275641) 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 7 ways as a sum of consecutive naturals, for example, 8237209 + ... + 8238160.

It is an arithmetic number, because the mean of its divisors is an integer number (691965540).

Almost surely, 2^7842275644 is an apocalyptic number.

It is an amenable number.

7842275644 is an abundant number, since it is smaller than the sum of its proper divisors (8764897316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7842275644 is a wasteful number, since it uses less digits than its factorization.

7842275644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475397 (or 16475395 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 49.

The square root of 7842275644 is about 88556.6239419729. The cubic root of 7842275644 is about 1986.7689665628.

The spelling of 7842275644 in words is "seven billion, eight hundred forty-two million, two hundred seventy-five thousand, six hundred forty-four".