85070704657 has 4 divisors (see below), whose sum is σ = 85072708080. Its totient is φ = 85068701236.

The previous prime is 85070704651. The next prime is 85070704661. The reversal of 85070704657 is 75640707058.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85070704657 - 2⁷ = 85070704529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85070704657.

It is not an unprimeable number, because it can be changed into a prime (85070704651) 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 3 ways as a sum of consecutive naturals, for example, 936607 + ... + 1023412.

It is an arithmetic number, because the mean of its divisors is an integer number (21268177020).

Almost surely, 2^85070704657 is an apocalyptic number.

It is an amenable number.

85070704657 is a deficient number, since it is larger than the sum of its proper divisors (2003423).

85070704657 is a wasteful number, since it uses less digits than its factorization.

85070704657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003422.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 85070704657 in words is "eighty-five billion, seventy million, seven hundred four thousand, six hundred fifty-seven".