70643270621 has 16 divisors (see below), whose sum is σ = 91111789440. Its totient is φ = 53148540480.

The previous prime is 70643270603. The next prime is 70643270629. The reversal of 70643270621 is 12607234607.

It is not a de Polignac number, because 70643270621 - 2³⁰ = 69569528797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70643270629) 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 15 ways as a sum of consecutive naturals, for example, 15815786 + ... + 15820251.

It is an arithmetic number, because the mean of its divisors is an integer number (5694486840).

Almost surely, 2^70643270621 is an apocalyptic number.

It is an amenable number.

70643270621 is a deficient number, since it is larger than the sum of its proper divisors (20468518819).

70643270621 is a wasteful number, since it uses less digits than its factorization.

70643270621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31636084.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 70643270621 in words is "seventy billion, six hundred forty-three million, two hundred seventy thousand, six hundred twenty-one".