70385684057 has 8 divisors (see below), whose sum is σ = 75914651400. Its totient is φ = 64873100160.

The previous prime is 70385684021. The next prime is 70385684107. The reversal of 70385684057 is 75048658307.

It can be written as a sum of positive squares in 4 ways, for example, as 29895793216 + 40489890841 = 172904^2 + 201221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70385684057 - 2⁶ = 70385683993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70385681057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086932 + ... + 4104117.

It is an arithmetic number, because the mean of its divisors is an integer number (9489331425).

Almost surely, 2^70385684057 is an apocalyptic number.

It is an amenable number.

70385684057 is a deficient number, since it is larger than the sum of its proper divisors (5528967343).

70385684057 is a wasteful number, since it uses less digits than its factorization.

70385684057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191723.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 70385684057 in words is "seventy billion, three hundred eighty-five million, six hundred eighty-four thousand, fifty-seven".