613680263 has 24 divisors (see below), whose sum is σ = 758369952. Its totient is φ = 493430784.

The previous prime is 613680253. The next prime is 613680271. The reversal of 613680263 is 362086316.

It is not a de Polignac number, because 613680263 - 2²² = 609485959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613680233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293006 + ... + 295092.

It is an arithmetic number, because the mean of its divisors is an integer number (31598748).

Almost surely, 2^613680263 is an apocalyptic number.

613680263 is a deficient number, since it is larger than the sum of its proper divisors (144689689).

613680263 is a wasteful number, since it uses less digits than its factorization.

613680263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 613680263 is about 24772.5707789886. The cubic root of 613680263 is about 849.7947661362.

The spelling of 613680263 in words is "six hundred thirteen million, six hundred eighty thousand, two hundred sixty-three".