6311448740 has 24 divisors (see below), whose sum is σ = 13257287232. Its totient is φ = 2523961440.

The previous prime is 6311448719. The next prime is 6311448757. The reversal of 6311448740 is 478441136.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6311448694 and 6311448703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50075 + ... + 123005.

It is an arithmetic number, because the mean of its divisors is an integer number (552386968).

Almost surely, 2^6311448740 is an apocalyptic number.

It is an amenable number.

6311448740 is an abundant number, since it is smaller than the sum of its proper divisors (6945838492).

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

6311448740 is a wasteful number, since it uses less digits than its factorization.

6311448740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77267 (or 77265 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 6311448740 is about 79444.6268793554. The cubic root of 6311448740 is about 1848.0328483913.

Adding to 6311448740 its reverse (478441136), we get a palindrome (6789889876).

The spelling of 6311448740 in words is "six billion, three hundred eleven million, four hundred forty-eight thousand, seven hundred forty".