6481789192 has 8 divisors (see below), whose sum is σ = 12153354750. Its totient is φ = 3240894592.

The previous prime is 6481789187. The next prime is 6481789211. The reversal of 6481789192 is 2919871846.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6025795876 + 455993316 = 77626^2 + 21354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6481789192² = 84027182259056025728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405111817 + ... + 405111832.

Almost surely, 2^6481789192 is an apocalyptic number.

It is an amenable number.

6481789192 is a deficient number, since it is larger than the sum of its proper divisors (5671565558).

6481789192 is a wasteful number, since it uses less digits than its factorization.

6481789192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810223655 (or 810223651 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 55.

The square root of 6481789192 is about 80509.5596311395. The cubic root of 6481789192 is about 1864.5110752991.

The spelling of 6481789192 in words is "six billion, four hundred eighty-one million, seven hundred eighty-nine thousand, one hundred ninety-two".