6489355970 has 8 divisors (see below), whose sum is σ = 11680840764. Its totient is φ = 2595742384.

The previous prime is 6489355967. The next prime is 6489355981. The reversal of 6489355970 is 795539846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5756408641 + 732947329 = 75871^2 + 27073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6489355970² = 84223481810749281800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324467789 + ... + 324467808.

Almost surely, 2^6489355970 is an apocalyptic number.

6489355970 is a deficient number, since it is larger than the sum of its proper divisors (5191484794).

6489355970 is a wasteful number, since it uses less digits than its factorization.

6489355970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648935604.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The square root of 6489355970 is about 80556.5389648786. The cubic root of 6489355970 is about 1865.2363305512.

The spelling of 6489355970 in words is "six billion, four hundred eighty-nine million, three hundred fifty-five thousand, nine hundred seventy".