613187968 has 32 divisors (see below), whose sum is σ = 1233706320. Its totient is φ = 303552000.

The previous prime is 613187963. The next prime is 613187983. The reversal of 613187968 is 869781316.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613187963) 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, 10788 + ... + 36643.

Almost surely, 2^613187968 is an apocalyptic number.

It is an amenable number.

613187968 is an abundant number, since it is smaller than the sum of its proper divisors (620518352).

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

613187968 is a wasteful number, since it uses less digits than its factorization.

613187968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47546 (or 47534 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 613187968 is about 24762.6324933356. The cubic root of 613187968 is about 849.5674699059.

The spelling of 613187968 in words is "six hundred thirteen million, one hundred eighty-seven thousand, nine hundred sixty-eight".