613451205231306 has 64 divisors (see below), whose sum is σ = 1327172727436416. Its totient is φ = 187912421049600.

The previous prime is 613451205231281. The next prime is 613451205231311. The reversal of 613451205231306 is 603132502154316.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325932096 + ... + 327808836.

It is an arithmetic number, because the mean of its divisors is an integer number (20737073866194).

Almost surely, 2^{613451205231306} is an apocalyptic number.

613451205231306 is an abundant number, since it is smaller than the sum of its proper divisors (713721522205110).

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

613451205231306 is a wasteful number, since it uses less digits than its factorization.

613451205231306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895447.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 613451205231306 in words is "six hundred thirteen trillion, four hundred fifty-one billion, two hundred five million, two hundred thirty-one thousand, three hundred six".