6481225345 has 12 divisors (see below), whose sum is σ = 9047261844. Its totient is φ = 4444268640.

The previous prime is 6481225327. The next prime is 6481225349. The reversal of 6481225345 is 5435221846.

It can be written as a sum of positive squares in 2 ways, for example, as 4721338944 + 1759886401 = 68712^2 + 41951^2 .

It is not a de Polignac number, because 6481225345 - 2¹⁵ = 6481192577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6481225298 and 6481225307.

It is not an unprimeable number, because it can be changed into a prime (6481225349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13226746 + ... + 13227235.

It is an arithmetic number, because the mean of its divisors is an integer number (753938487).

Almost surely, 2^6481225345 is an apocalyptic number.

It is an amenable number.

6481225345 is a deficient number, since it is larger than the sum of its proper divisors (2566036499).

6481225345 is a wasteful number, since it uses less digits than its factorization.

6481225345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26454000 (or 26453993 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 6481225345 is about 80506.0578155458. The cubic root of 6481225345 is about 1864.4570094936.

The spelling of 6481225345 in words is "six billion, four hundred eighty-one million, two hundred twenty-five thousand, three hundred forty-five".