613554641644 has 12 divisors (see below), whose sum is σ = 1227109283344. Its totient is φ = 262951989264.

The previous prime is 613554641627. The next prime is 613554641657. The reversal of 613554641644 is 446146455316.

613554641644 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10956332859 + ... + 10956332914.

Almost surely, 2^613554641644 is an apocalyptic number.

It is an amenable number.

613554641644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

613554641644 is a wasteful number, since it uses less digits than its factorization.

613554641644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21912665784 (or 21912665782 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

The spelling of 613554641644 in words is "six hundred thirteen billion, five hundred fifty-four million, six hundred forty-one thousand, six hundred forty-four".