6401816748 has 48 divisors (see below), whose sum is σ = 16626529920. Its totient is φ = 2130181200.

The previous prime is 6401816747. The next prime is 6401816777. The reversal of 6401816748 is 8476181046.

It is not an unprimeable number, because it can be changed into a prime (6401816747) 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, 9763 + ... + 113573.

It is an arithmetic number, because the mean of its divisors is an integer number (346386040).

Almost surely, 2^6401816748 is an apocalyptic number.

It is an amenable number.

6401816748 is an abundant number, since it is smaller than the sum of its proper divisors (10224713172).

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

6401816748 is a wasteful number, since it uses less digits than its factorization.

6401816748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104395 (or 104387 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 6401816748 is about 80011.3538693103. The cubic root of 6401816748 is about 1856.8111959335.

The spelling of 6401816748 in words is "six billion, four hundred one million, eight hundred sixteen thousand, seven hundred forty-eight".