6469217320 has 32 divisors (see below), whose sum is σ = 14605443720. Its totient is φ = 2578850560.

The previous prime is 6469217303. The next prime is 6469217347. The reversal of 6469217320 is 237129646.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6453551556 + 15665764 = 80334^2 + 3958^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264271 + ... + 287710.

Almost surely, 2^6469217320 is an apocalyptic number.

It is an amenable number.

6469217320 is an abundant number, since it is smaller than the sum of its proper divisors (8136226400).

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

6469217320 is a wasteful number, since it uses less digits than its factorization.

6469217320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552285 (or 552281 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 6469217320 is about 80431.4448459059. Note that the first 3 decimals coincide. The cubic root of 6469217320 is about 1863.3048463303.

The spelling of 6469217320 in words is "six billion, four hundred sixty-nine million, two hundred seventeen thousand, three hundred twenty".