6470536875625 has 15 divisors (see below), whose sum is σ = 8085662346531. Its totient is φ = 5176378626000.

The previous prime is 6470536875623. The next prime is 6470536875653. The reversal of 6470536875625 is 5265786350746.

The square root of 6470536875625 is 2543725.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1177426818649 + 5293110056976 = 1085093^2 + 2300676^2 .

It is not a de Polignac number, because 6470536875625 - 2¹ = 6470536875623 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6470536875623) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 63542251 + ... + 63643999.

Almost surely, 2^{6470536875625} is an apocalyptic number.

6470536875625 is the 2543725-th square number.

6470536875625 is the 1271863-rd centered octagonal number.

It is an amenable number.

6470536875625 is a deficient number, since it is larger than the sum of its proper divisors (1615125470906).

6470536875625 is an frugal number, since it uses more digits than its factorization.

6470536875625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203518 (or 101754 counting only the distinct ones).

The product of its (nonzero) digits is 254016000, while the sum is 64.

Multiplying 6470536875625 by its sum of digits (64), we get a square (414114360040000 = 20349800²).

The spelling of 6470536875625 in words is "six trillion, four hundred seventy billion, five hundred thirty-six million, eight hundred seventy-five thousand, six hundred twenty-five".