6440461027 has 64 divisors (see below), whose sum is σ = 9417139200. Its totient is φ = 4236986880.

The previous prime is 6440461003. The next prime is 6440461031. The reversal of 6440461027 is 7201640446.

It is a de Polignac number, because none of the positive numbers 2^k-6440461027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6440460983 and 6440461001.

It is not an unprimeable number, because it can be changed into a prime (6440461057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 545713 + ... + 557389.

It is an arithmetic number, because the mean of its divisors is an integer number (147142800).

Almost surely, 2^6440461027 is an apocalyptic number.

6440461027 is a deficient number, since it is larger than the sum of its proper divisors (2976678173).

6440461027 is a wasteful number, since it uses less digits than its factorization.

6440461027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 6440461027 is about 80252.4829958550. The cubic root of 6440461027 is about 1860.5398890414.

The spelling of 6440461027 in words is "six billion, four hundred forty million, four hundred sixty-one thousand, twenty-seven".