70829744429 has 4 divisors (see below), whose sum is σ = 72744061884. Its totient is φ = 68915426976.

The previous prime is 70829744423. The next prime is 70829744431. The reversal of 70829744429 is 92444792807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27367084900 + 43462659529 = 165430^2 + 208477^2 .

It is a cyclic number.

It is not a de Polignac number, because 70829744429 - 2⁴ = 70829744413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70829744423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957158672 + ... + 957158745.

It is an arithmetic number, because the mean of its divisors is an integer number (18186015471).

Almost surely, 2^70829744429 is an apocalyptic number.

It is an amenable number.

70829744429 is a deficient number, since it is larger than the sum of its proper divisors (1914317455).

70829744429 is a wasteful number, since it uses less digits than its factorization.

70829744429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914317454.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 70829744429 in words is "seventy billion, eight hundred twenty-nine million, seven hundred forty-four thousand, four hundred twenty-nine".