70829967321 has 21 divisors (see below), whose sum is σ = 106207145551. Its totient is φ = 47215187712.

The previous prime is 70829967319. The next prime is 70829967337. The reversal of 70829967321 is 12376992807.

The square root of 70829967321 is 266139.

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., 26112944025 + 44717023296 = 161595^2 + 211464^2 .

It is not a de Polignac number, because 70829967321 - 2¹ = 70829967319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70829967311) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 7180825 + ... + 7190681.

Almost surely, 2^70829967321 is an apocalyptic number.

70829967321 is the 266139-th square number.

70829967321 is the 133070-th centered octagonal number.

It is an amenable number.

70829967321 is a deficient number, since it is larger than the sum of its proper divisors (35377178230).

70829967321 is an frugal number, since it uses more digits than its factorization.

70829967321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19732 (or 9860 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 70829967321 in words is "seventy billion, eight hundred twenty-nine million, nine hundred sixty-seven thousand, three hundred twenty-one".