613137444645 has 128 divisors (see below), whose sum is σ = 1118117468160. Its totient is φ = 284187294720.

The previous prime is 613137444631. The next prime is 613137444671. The reversal of 613137444645 is 546444731316.

It is a happy number.

It is not a de Polignac number, because 613137444645 - 2⁴ = 613137444629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 613137444594 and 613137444603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 228525474 + ... + 228528156.

It is an arithmetic number, because the mean of its divisors is an integer number (8735292720).

Almost surely, 2^613137444645 is an apocalyptic number.

It is an amenable number.

613137444645 is a deficient number, since it is larger than the sum of its proper divisors (504980023515).

613137444645 is a wasteful number, since it uses less digits than its factorization.

613137444645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its digits is 2903040, while the sum is 48.

The spelling of 613137444645 in words is "six hundred thirteen billion, one hundred thirty-seven million, four hundred forty-four thousand, six hundred forty-five".