613878560 has 24 divisors (see below), whose sum is σ = 1450288476. Its totient is φ = 245551360.

The previous prime is 613878553. The next prime is 613878569. The reversal of 613878560 is 65878316.

It can be written as a sum of positive squares in 2 ways, for example, as 613651984 + 226576 = 24772^2 + 476^2 .

It is not an unprimeable number, because it can be changed into a prime (613878569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918211 + ... + 1918530.

Almost surely, 2^613878560 is an apocalyptic number.

It is an amenable number.

613878560 is an abundant number, since it is smaller than the sum of its proper divisors (836409916).

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

613878560 is a wasteful number, since it uses less digits than its factorization.

613878560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836756 (or 3836748 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 613878560 is about 24776.5728057776. The cubic root of 613878560 is about 849.8862869796.

The spelling of 613878560 in words is "six hundred thirteen million, eight hundred seventy-eight thousand, five hundred sixty".