70619128609 has 2 divisors, whose sum is σ = 70619128610. Its totient is φ = 70619128608.

The previous prime is 70619128603. The next prime is 70619128639. The reversal of 70619128609 is 90682191607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37193051025 + 33426077584 = 192855^2 + 182828^2 .

It is a cyclic number.

It is not a de Polignac number, because 70619128609 - 2¹³ = 70619120417 is a prime.

It is a super-2 number, since 2×70619128609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70619128603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35309564304 + 35309564305.

It is an arithmetic number, because the mean of its divisors is an integer number (35309564305).

Almost surely, 2^70619128609 is an apocalyptic number.

It is an amenable number.

70619128609 is a deficient number, since it is larger than the sum of its proper divisors (1).

70619128609 is an equidigital number, since it uses as much as digits as its factorization.

70619128609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 70619128609 in words is "seventy billion, six hundred nineteen million, one hundred twenty-eight thousand, six hundred nine".