6485971770 has 24 divisors (see below), whose sum is σ = 16863526836. Its totient is φ = 1729592448.

The previous prime is 6485971763. The next prime is 6485971781. The reversal of 6485971770 is 771795846.

6485971770 is a `hidden beast` number, since 6 + 48 + 597 + 1 + 7 + 7 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6392482209 + 93489561 = 79953^2 + 9669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36033087 + ... + 36033266.

Almost surely, 2^6485971770 is an apocalyptic number.

6485971770 is an abundant number, since it is smaller than the sum of its proper divisors (10377555066).

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

6485971770 is a wasteful number, since it uses less digits than its factorization.

6485971770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72066366 (or 72066363 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The square root of 6485971770 is about 80535.5311027375. The cubic root of 6485971770 is about 1864.9120338397.

The spelling of 6485971770 in words is "six billion, four hundred eighty-five million, nine hundred seventy-one thousand, seven hundred seventy".