70516238609 has 2 divisors, whose sum is σ = 70516238610. Its totient is φ = 70516238608.

The previous prime is 70516238549. The next prime is 70516238627. The reversal of 70516238609 is 90683261507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35984193025 + 34532045584 = 189695^2 + 185828^2 .

It is a cyclic number.

It is not a de Polignac number, because 70516238609 - 2¹⁶ = 70516173073 is a prime.

It is a super-2 number, since 2×70516238609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70516238659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35258119304 + 35258119305.

It is an arithmetic number, because the mean of its divisors is an integer number (35258119305).

Almost surely, 2^70516238609 is an apocalyptic number.

It is an amenable number.

70516238609 is a deficient number, since it is larger than the sum of its proper divisors (1).

70516238609 is an equidigital number, since it uses as much as digits as its factorization.

70516238609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 70516238609 in words is "seventy billion, five hundred sixteen million, two hundred thirty-eight thousand, six hundred nine".