2645915328 has 168 divisors, whose sum is σ = 9048750000. Its totient is φ = 755951616.

The previous prime is 2645915303. The next prime is 2645915339. The reversal of 2645915328 is 8235195462.

2645915328 is a `hidden beast` number, since 2 + 6 + 4 + 591 + 53 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69048 + ... + 100296.

Almost surely, 2^2645915328 is an apocalyptic number.

2645915328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2645915328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4524375000).

2645915328 is an abundant number, since it is smaller than the sum of its proper divisors (6402834672).

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

2645915328 is a wasteful number, since it uses less digits than its factorization.

2645915328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31284 (or 31261 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 2645915328 is about 51438.4615633088. The cubic root of 2645915328 is about 1383.1161340640.

The spelling of 2645915328 in words is "two billion, six hundred forty-five million, nine hundred fifteen thousand, three hundred twenty-eight".