70267194797809 has 9 divisors (see below), whose sum is σ = 74160282269817. Its totient is φ = 66568770501444.

The previous prime is 70267194797801. The next prime is 70267194797881. The reversal of 70267194797809 is 90879749176207.

The square root of 70267194797809 is 8382553.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 70267194797809 - 2³ = 70267194797801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70267194797801) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 159047914 + ... + 159489100.

It is an arithmetic number, because the mean of its divisors is an integer number (8240031363313).

Almost surely, 2^{70267194797809} is an apocalyptic number.

70267194797809 is the 8382553-rd square number.

70267194797809 is the 4191277-th centered octagonal number.

It is an amenable number.

70267194797809 is a deficient number, since it is larger than the sum of its proper divisors (3893087472008).

70267194797809 is an frugal number, since it uses more digits than its factorization.

70267194797809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882412 (or 441206 counting only the distinct ones).

The product of its (nonzero) digits is 672126336, while the sum is 76.

The spelling of 70267194797809 in words is "seventy trillion, two hundred sixty-seven billion, one hundred ninety-four million, seven hundred ninety-seven thousand, eight hundred nine".