70916644129 has 4 divisors (see below), whose sum is σ = 70917211540. Its totient is φ = 70916076720.

The previous prime is 70916644103. The next prime is 70916644133. The reversal of 70916644129 is 92144661907.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12381680529 + 58534963600 = 111273^2 + 241940^2 .

It is a cyclic number.

It is not a de Polignac number, because 70916644129 - 2⁹ = 70916643617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70916644229) 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, 4902 + ... + 376639.

It is an arithmetic number, because the mean of its divisors is an integer number (17729302885).

Almost surely, 2^70916644129 is an apocalyptic number.

It is an amenable number.

70916644129 is a deficient number, since it is larger than the sum of its proper divisors (567411).

70916644129 is a wasteful number, since it uses less digits than its factorization.

70916644129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567410.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 70916644129 in words is "seventy billion, nine hundred sixteen million, six hundred forty-four thousand, one hundred twenty-nine".