70646982025 has 81 divisors (see below), whose sum is σ = 96482232511. Its totient is φ = 51304814080.

The previous prime is 70646982011. The next prime is 70646982071. The reversal of 70646982025 is 52028964607.

The square root of 70646982025 is 265795.

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

It can be written as a sum of positive squares in 13 ways, for example, as 10868688009 + 59778294016 = 104253^2 + 244496^2 .

It is not a de Polignac number, because 70646982025 - 2⁹ = 70646981513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70646982025.

It is an unprimeable number.

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, 1197406446 + ... + 1197406504.

Almost surely, 2^70646982025 is an apocalyptic number.

70646982025 is the 265795-th square number.

70646982025 is the 132898-th centered octagonal number.

It is an amenable number.

70646982025 is a deficient number, since it is larger than the sum of its proper divisors (25835250486).

70646982025 is an equidigital number, since it uses as much as digits as its factorization.

70646982025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

Multiplying 70646982025 by its sum of digits (49), we get a square (3461702119225 = 1860565²).

The spelling of 70646982025 in words is "seventy billion, six hundred forty-six million, nine hundred eighty-two thousand, twenty-five".