7440447679 has 12 divisors (see below), whose sum is σ = 8679344400. Its totient is φ = 6359746848.

The previous prime is 7440447673. The next prime is 7440447689. The reversal of 7440447679 is 9767440447.

It is not a de Polignac number, because 7440447679 - 2¹¹ = 7440445631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440447673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193894 + ... + 229075.

It is an arithmetic number, because the mean of its divisors is an integer number (723278700).

Almost surely, 2^7440447679 is an apocalyptic number.

7440447679 is a deficient number, since it is larger than the sum of its proper divisors (1238896721).

7440447679 is a wasteful number, since it uses less digits than its factorization.

7440447679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423342 (or 423335 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The square root of 7440447679 is about 86258.0296494187. The cubic root of 7440447679 is about 1952.2391704186.

The spelling of 7440447679 in words is "seven billion, four hundred forty million, four hundred forty-seven thousand, six hundred seventy-nine".