70284519121 has 2 divisors, whose sum is σ = 70284519122. Its totient is φ = 70284519120.

The previous prime is 70284519101. The next prime is 70284519233. The reversal of 70284519121 is 12191548207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50046611521 + 20237907600 = 223711^2 + 142260^2 .

It is an emirp because it is prime and its reverse (12191548207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70284519121 - 2¹⁷ = 70284388049 is a prime.

It is a super-2 number, since 2×70284519121² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70284519101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35142259560 + 35142259561.

It is an arithmetic number, because the mean of its divisors is an integer number (35142259561).

Almost surely, 2^70284519121 is an apocalyptic number.

It is an amenable number.

70284519121 is a deficient number, since it is larger than the sum of its proper divisors (1).

70284519121 is an equidigital number, since it uses as much as digits as its factorization.

70284519121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 70284519121 in words is "seventy billion, two hundred eighty-four million, five hundred nineteen thousand, one hundred twenty-one".