2645204580 has 96 divisors (see below), whose sum is σ = 8495047680. Its totient is φ = 682629120.

The previous prime is 2645204543. The next prime is 2645204581. The reversal of 2645204580 is 854025462.

It is a happy number.

2645204580 is a `hidden beast` number, since 2 + 645 + 2 + 0 + 4 + 5 + 8 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2645204581) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 62269 + ... + 95748.

It is an arithmetic number, because the mean of its divisors is an integer number (88490080).

Almost surely, 2^2645204580 is an apocalyptic number.

2645204580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2645204580 is an abundant number, since it is smaller than the sum of its proper divisors (5849843100).

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

2645204580 is a wasteful number, since it uses less digits than its factorization.

2645204580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158066 (or 158058 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 2645204580 is about 51431.5523778935. The cubic root of 2645204580 is about 1382.9922783670.

The spelling of 2645204580 in words is "two billion, six hundred forty-five million, two hundred four thousand, five hundred eighty".