70728302313 has 12 divisors (see below), whose sum is σ = 107540109040. Its totient is φ = 44670506616.

The previous prime is 70728302311. The next prime is 70728302327. The reversal of 70728302313 is 31320382707.

It is not a de Polignac number, because 70728302313 - 2¹ = 70728302311 is a prime.

It is a super-2 number, since 2×70728302313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70728302311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206807731 + ... + 206808072.

Almost surely, 2^70728302313 is an apocalyptic number.

It is an amenable number.

70728302313 is a deficient number, since it is larger than the sum of its proper divisors (36811806727).

70728302313 is a wasteful number, since it uses less digits than its factorization.

70728302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413615828 (or 413615825 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 70728302313 in words is "seventy billion, seven hundred twenty-eight million, three hundred two thousand, three hundred thirteen".