70671353213 has 4 divisors (see below), whose sum is σ = 73744020768. Its totient is φ = 67598685660.

The previous prime is 70671353209. The next prime is 70671353219. The reversal of 70671353213 is 31235317607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70671353213 - 2² = 70671353209 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 (70671353219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536333743 + ... + 1536333788.

It is an arithmetic number, because the mean of its divisors is an integer number (18436005192).

Almost surely, 2^70671353213 is an apocalyptic number.

It is an amenable number.

70671353213 is a deficient number, since it is larger than the sum of its proper divisors (3072667555).

70671353213 is a wasteful number, since it uses less digits than its factorization.

70671353213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072667554.

The product of its (nonzero) digits is 79380, while the sum is 38.

The spelling of 70671353213 in words is "seventy billion, six hundred seventy-one million, three hundred fifty-three thousand, two hundred thirteen".