7641987448 has 16 divisors (see below), whose sum is σ = 14361077880. Its totient is φ = 3812366688.

The previous prime is 7641987433. The next prime is 7641987467. The reversal of 7641987448 is 8447891467.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7641987392 and 7641987401.

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, 1074615 + ... + 1081702.

Almost surely, 2^7641987448 is an apocalyptic number.

It is an amenable number.

7641987448 is a deficient number, since it is larger than the sum of its proper divisors (6719090432).

7641987448 is a wasteful number, since it uses less digits than its factorization.

7641987448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156766 (or 2156762 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The square root of 7641987448 is about 87418.4617114715. The cubic root of 7641987448 is about 1969.7091695348.

The spelling of 7641987448 in words is "seven billion, six hundred forty-one million, nine hundred eighty-seven thousand, four hundred forty-eight".