70537940617 has 2 divisors, whose sum is σ = 70537940618. Its totient is φ = 70537940616.

The previous prime is 70537940611. The next prime is 70537940639. The reversal of 70537940617 is 71604973507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62605544521 + 7932396096 = 250211^2 + 89064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70537940617 is a prime.

It is not a weakly prime, because it can be changed into another prime (70537940611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35268970308 + 35268970309.

It is an arithmetic number, because the mean of its divisors is an integer number (35268970309).

Almost surely, 2^70537940617 is an apocalyptic number.

It is an amenable number.

70537940617 is a deficient number, since it is larger than the sum of its proper divisors (1).

70537940617 is an equidigital number, since it uses as much as digits as its factorization.

70537940617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 70537940617 in words is "seventy billion, five hundred thirty-seven million, nine hundred forty thousand, six hundred seventeen".