70210312687 has 2 divisors, whose sum is σ = 70210312688. Its totient is φ = 70210312686.

The previous prime is 70210312649. The next prime is 70210312721. The reversal of 70210312687 is 78621301207.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70210312687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70210312607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35105156343 + 35105156344.

It is an arithmetic number, because the mean of its divisors is an integer number (35105156344).

Almost surely, 2^70210312687 is an apocalyptic number.

70210312687 is a deficient number, since it is larger than the sum of its proper divisors (1).

70210312687 is an equidigital number, since it uses as much as digits as its factorization.

70210312687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 70210312687 in words is "seventy billion, two hundred ten million, three hundred twelve thousand, six hundred eighty-seven".