3219072505 has 48 divisors (see below), whose sum is σ = 4330267200. Its totient is φ = 2295216000.

The previous prime is 3219072503. The next prime is 3219072517. The reversal of 3219072505 is 5052709123.

It is not a de Polignac number, because 3219072505 - 2¹ = 3219072503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3219072503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8493406 + ... + 8493784.

It is an arithmetic number, because the mean of its divisors is an integer number (90213900).

Almost surely, 2^3219072505 is an apocalyptic number.

It is an amenable number.

3219072505 is a deficient number, since it is larger than the sum of its proper divisors (1111194695).

3219072505 is a wasteful number, since it uses less digits than its factorization.

3219072505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 3219072505 is about 56736.8707720121. The cubic root of 3219072505 is about 1476.5344567607.

The spelling of 3219072505 in words is "three billion, two hundred nineteen million, seventy-two thousand, five hundred five".