70573231729 has 24 divisors (see below), whose sum is σ = 95473528640. Its totient is φ = 50761956960.

The previous prime is 70573231699. The next prime is 70573231747. The reversal of 70573231729 is 92713237507.

It is a happy number.

It is not a de Polignac number, because 70573231729 - 2¹¹ = 70573229681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70573231529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3193659 + ... + 3215680.

Almost surely, 2^70573231729 is an apocalyptic number.

It is an amenable number.

70573231729 is a deficient number, since it is larger than the sum of its proper divisors (24900296911).

70573231729 is a wasteful number, since it uses less digits than its factorization.

70573231729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409381 (or 6409370 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 70573231729 in words is "seventy billion, five hundred seventy-three million, two hundred thirty-one thousand, seven hundred twenty-nine".