6464823570 has 64 divisors (see below), whose sum is σ = 17251332480. Its totient is φ = 1722772800.

The previous prime is 6464823553. The next prime is 6464823577. The reversal of 6464823570 is 753284646.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6464823577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430285 + ... + 445055.

It is an arithmetic number, because the mean of its divisors is an integer number (269552070).

Almost surely, 2^6464823570 is an apocalyptic number.

6464823570 is an abundant number, since it is smaller than the sum of its proper divisors (10786508910).

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

6464823570 is a wasteful number, since it uses less digits than its factorization.

6464823570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16408 (or 16402 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The square root of 6464823570 is about 80404.1265732052. The cubic root of 6464823570 is about 1862.8829122479.

The spelling of 6464823570 in words is "six billion, four hundred sixty-four million, eight hundred twenty-three thousand, five hundred seventy".