6401747740 has 24 divisors (see below), whose sum is σ = 13452561360. Its totient is φ = 2559005568.

The previous prime is 6401747719. The next prime is 6401747743. The reversal of 6401747740 is 477471046.

It is a junction number, because it is equal to n+sod(n) for n = 6401747693 and 6401747702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401747743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74625 + ... + 135544.

It is an arithmetic number, because the mean of its divisors is an integer number (560523390).

Almost surely, 2^6401747740 is an apocalyptic number.

It is an amenable number.

6401747740 is an abundant number, since it is smaller than the sum of its proper divisors (7050813620).

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

6401747740 is a wasteful number, since it uses less digits than its factorization.

6401747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211701 (or 211699 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 6401747740 is about 80010.9226293511. The cubic root of 6401747740 is about 1856.8045241146.

The spelling of 6401747740 in words is "six billion, four hundred one million, seven hundred forty-seven thousand, seven hundred forty".