70640337307 has 4 divisors (see below), whose sum is σ = 70713389296. Its totient is φ = 70567285320.

The previous prime is 70640337289. The next prime is 70640337311. The reversal of 70640337307 is 70373304607.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70640337307 is a prime.

It is the 265783-rd Hogben number.

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 70640337307.

It is not an unprimeable number, because it can be changed into a prime (70640337007) by changing a digit.

It is a nontrivial repunit in base 265782.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36524544 + ... + 36526477.

It is an arithmetic number, because the mean of its divisors is an integer number (17678347324).

Almost surely, 2^70640337307 is an apocalyptic number.

70640337307 is a deficient number, since it is larger than the sum of its proper divisors (73051989).

70640337307 is an equidigital number, since it uses as much as digits as its factorization.

70640337307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73051988.

The product of its (nonzero) digits is 222264, while the sum is 40.

The spelling of 70640337307 in words is "seventy billion, six hundred forty million, three hundred thirty-seven thousand, three hundred seven".