6445412051 has 8 divisors (see below), whose sum is σ = 6987800400. Its totient is φ = 5909679072.

The previous prime is 6445411979. The next prime is 6445412063. The reversal of 6445412051 is 1502145446.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6445412051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6445411999 and 6445412017.

It is not an unprimeable number, because it can be changed into a prime (6445412251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661825 + ... + 1665698.

It is an arithmetic number, because the mean of its divisors is an integer number (873475050).

Almost surely, 2^6445412051 is an apocalyptic number.

6445412051 is a deficient number, since it is larger than the sum of its proper divisors (542388349).

6445412051 is a wasteful number, since it uses less digits than its factorization.

6445412051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327685.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 6445412051 is about 80283.3236170501. The cubic root of 6445412051 is about 1861.0165225300.

Adding to 6445412051 its reverse (1502145446), we get a palindrome (7947557497).

The spelling of 6445412051 in words is "six billion, four hundred forty-five million, four hundred twelve thousand, fifty-one".