7747472444 has 12 divisors (see below), whose sum is σ = 14147558544. Its totient is φ = 3705312864.

The previous prime is 7747472429. The next prime is 7747472459. The reversal of 7747472444 is 4442747477.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7747472429) and next prime (7747472459).

It is a junction number, because it is equal to n+sod(n) for n = 7747472392 and 7747472401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42105737 + ... + 42105920.

It is an arithmetic number, because the mean of its divisors is an integer number (1178963212).

Almost surely, 2^7747472444 is an apocalyptic number.

It is an amenable number.

7747472444 is a deficient number, since it is larger than the sum of its proper divisors (6400086100).

7747472444 is a wasteful number, since it uses less digits than its factorization.

7747472444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84211684 (or 84211682 counting only the distinct ones).

The product of its digits is 4917248, while the sum is 50.

The square root of 7747472444 is about 88019.7275842183. The cubic root of 7747472444 is about 1978.7306461216.

The spelling of 7747472444 in words is "seven billion, seven hundred forty-seven million, four hundred seventy-two thousand, four hundred forty-four".