70671103381 has 2 divisors, whose sum is σ = 70671103382. Its totient is φ = 70671103380.

The previous prime is 70671103361. The next prime is 70671103417. The reversal of 70671103381 is 18330117607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65502212356 + 5168891025 = 255934^2 + 71895^2 .

It is a cyclic number.

It is not a de Polignac number, because 70671103381 - 2⁹ = 70671102869 is a prime.

It is a super-2 number, since 2×70671103381² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70671103381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70671103361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35335551690 + 35335551691.

It is an arithmetic number, because the mean of its divisors is an integer number (35335551691).

Almost surely, 2^70671103381 is an apocalyptic number.

It is an amenable number.

70671103381 is a deficient number, since it is larger than the sum of its proper divisors (1).

70671103381 is an equidigital number, since it uses as much as digits as its factorization.

70671103381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 70671103381 in words is "seventy billion, six hundred seventy-one million, one hundred three thousand, three hundred eighty-one".