85380953257 has 8 divisors (see below), whose sum is σ = 89107689600. Its totient is φ = 81655427040.

The previous prime is 85380953249. The next prime is 85380953263. The reversal of 85380953257 is 75235908358.

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 85380953257 - 2³ = 85380953249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85380953198 and 85380953207.

It is not an unprimeable number, because it can be changed into a prime (85380953237) 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 7 ways as a sum of consecutive naturals, for example, 156844 + ... + 441997.

It is an arithmetic number, because the mean of its divisors is an integer number (11138461200).

Almost surely, 2^85380953257 is an apocalyptic number.

It is an amenable number.

85380953257 is a deficient number, since it is larger than the sum of its proper divisors (3726736343).

85380953257 is a wasteful number, since it uses less digits than its factorization.

85380953257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605063.

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 85380953257 in words is "eighty-five billion, three hundred eighty million, nine hundred fifty-three thousand, two hundred fifty-seven".