3215149696 has 64 divisors (see below), whose sum is σ = 7053104160. Its totient is φ = 1447705600.

The previous prime is 3215149687. The next prime is 3215149697. The reversal of 3215149696 is 6969415123.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (3215149697) 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, 139986 + ... + 161326.

Almost surely, 2^3215149696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3215149696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3526552080).

3215149696 is an abundant number, since it is smaller than the sum of its proper divisors (3837954464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3215149696 is a wasteful number, since it uses less digits than its factorization.

3215149696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21473 (or 21461 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 3215149696 is about 56702.2900419375. The cubic root of 3215149696 is about 1475.9344374440.

The spelling of 3215149696 in words is "three billion, two hundred fifteen million, one hundred forty-nine thousand, six hundred ninety-six".