70774621225 has 81 divisors (see below), whose sum is σ = 112375914903. Its totient is φ = 44055396000.

The previous prime is 70774621223. The next prime is 70774621241. The reversal of 70774621225 is 52212647707.

The square root of 70774621225 is 266035.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25478863641 + 45295757584 = 159621^2 + 212828^2 .

It is not a de Polignac number, because 70774621225 - 2¹ = 70774621223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70774621223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 102423130 + ... + 102423820.

Almost surely, 2^70774621225 is an apocalyptic number.

70774621225 is the 266035-th square number.

70774621225 is the 133018-th centered octagonal number.

It is an amenable number.

70774621225 is a deficient number, since it is larger than the sum of its proper divisors (41601293678).

70774621225 is an equidigital number, since it uses as much as digits as its factorization.

70774621225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 70774621225 in words is "seventy billion, seven hundred seventy-four million, six hundred twenty-one thousand, two hundred twenty-five".