7442772447 has 16 divisors (see below), whose sum is σ = 10927032192. Its totient is φ = 4468612320.

The previous prime is 7442772439. The next prime is 7442772521.

7442772447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7442772447 - 2³ = 7442772439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7442772396 and 7442772405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7442772047) 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, 1050388 + ... + 1057449.

It is an arithmetic number, because the mean of its divisors is an integer number (682939512).

Almost surely, 2^7442772447 is an apocalyptic number.

7442772447 is a deficient number, since it is larger than the sum of its proper divisors (3484259745).

7442772447 is a wasteful number, since it uses less digits than its factorization.

7442772447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107958.

The product of its digits is 2458624, while the sum is 48.

The square root of 7442772447 is about 86271.5042583587. The cubic root of 7442772447 is about 1952.4424749663.

The spelling of 7442772447 in words is "seven billion, four hundred forty-two million, seven hundred seventy-two thousand, four hundred forty-seven".