157068306313 has 8 divisors (see below), whose sum is σ = 157294159880. Its totient is φ = 156842542080.

The previous prime is 157068306271. The next prime is 157068306347. The reversal of 157068306313 is 313603860751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25239041424 + 131829264889 = 158868^2 + 363083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157068306313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157068306313.

It is not an unprimeable number, because it can be changed into a prime (157068306713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4010281 + ... + 4049257.

It is an arithmetic number, because the mean of its divisors is an integer number (19661769985).

Almost surely, 2^157068306313 is an apocalyptic number.

It is an amenable number.

157068306313 is a deficient number, since it is larger than the sum of its proper divisors (225853567).

157068306313 is an equidigital number, since it uses as much as digits as its factorization.

157068306313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44667.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 157068306313 in words is "one hundred fifty-seven billion, sixty-eight million, three hundred six thousand, three hundred thirteen".