70809742201 has 27 divisors (see below), whose sum is σ = 82738019343. Its totient is φ = 60543299520.

The previous prime is 70809742151. The next prime is 70809742207. The reversal of 70809742201 is 10224790807.

The square root of 70809742201 is 266101.

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., 55128692025 + 15681050176 = 234795^2 + 125224^2 .

It is not a de Polignac number, because 70809742201 - 2²³ = 70801353593 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70809742207) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 49760176 + ... + 49761598.

Almost surely, 2^70809742201 is an apocalyptic number.

70809742201 is the 266101-st square number.

70809742201 is the 133051-st centered octagonal number.

It is an amenable number.

70809742201 is a deficient number, since it is larger than the sum of its proper divisors (11928277142).

70809742201 is an equidigital number, since it uses as much as digits as its factorization.

70809742201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 70809742201 in words is "seventy billion, eight hundred nine million, seven hundred forty-two thousand, two hundred one".