70985147449 has 2 divisors, whose sum is σ = 70985147450. Its totient is φ = 70985147448.

The previous prime is 70985147407. The next prime is 70985147461. The reversal of 70985147449 is 94474158907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66894649600 + 4090497849 = 258640^2 + 63957^2 .

It is a cyclic number.

It is not a de Polignac number, because 70985147449 - 2¹⁹ = 70984623161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70985147393 and 70985147402.

It is not a weakly prime, because it can be changed into another prime (70985148449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35492573724 + 35492573725.

It is an arithmetic number, because the mean of its divisors is an integer number (35492573725).

Almost surely, 2^70985147449 is an apocalyptic number.

It is an amenable number.

70985147449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70985147449 is an equidigital number, since it uses as much as digits as its factorization.

70985147449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 70985147449 in words is "seventy billion, nine hundred eighty-five million, one hundred forty-seven thousand, four hundred forty-nine".