70865880085 has 32 divisors (see below), whose sum is σ = 114178321152. Its totient is φ = 40777966080.

The previous prime is 70865880031. The next prime is 70865880091. The reversal of 70865880085 is 58008856807.

It is a happy number.

It is not a de Polignac number, because 70865880085 - 2¹³ = 70865871893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7074504 + ... + 7084513.

It is an arithmetic number, because the mean of its divisors is an integer number (3568072536).

Almost surely, 2^70865880085 is an apocalyptic number.

It is an amenable number.

70865880085 is a deficient number, since it is larger than the sum of its proper divisors (43312441067).

70865880085 is a wasteful number, since it uses less digits than its factorization.

70865880085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14159053.

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 70865880085 in words is "seventy billion, eight hundred sixty-five million, eight hundred eighty thousand, eighty-five".