613945089136 has 20 divisors (see below), whose sum is σ = 1259490293712. Its totient is φ = 288915335936.

The previous prime is 613945089103. The next prime is 613945089139. The reversal of 613945089136 is 631980549316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613945089139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128575260 + ... + 1128575803.

Almost surely, 2^613945089136 is an apocalyptic number.

It is an amenable number.

613945089136 is an abundant number, since it is smaller than the sum of its proper divisors (645545204576).

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

613945089136 is a wasteful number, since it uses less digits than its factorization.

613945089136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257151088 (or 2257151082 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 613945089136 in words is "six hundred thirteen billion, nine hundred forty-five million, eighty-nine thousand, one hundred thirty-six".