2645615480 has 256 divisors, whose sum is σ = 7185024000. Its totient is φ = 868589568.

The previous prime is 2645615471. The next prime is 2645615507. The reversal of 2645615480 is 845165462.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 8617487 + ... + 8617793.

It is an arithmetic number, because the mean of its divisors is an integer number (28066500).

Almost surely, 2^2645615480 is an apocalyptic number.

2645615480 is a gapful number since it is divisible by the number (20) 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 2645615480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3592512000).

2645615480 is an abundant number, since it is smaller than the sum of its proper divisors (4539408520).

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

2645615480 is a wasteful number, since it uses less digits than its factorization.

2645615480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 2645615480 is about 51435.5468523472. The cubic root of 2645615480 is about 1383.0638849401.

The spelling of 2645615480 in words is "two billion, six hundred forty-five million, six hundred fifteen thousand, four hundred eighty".