85465658381 has 8 divisors (see below), whose sum is σ = 86593399200. Its totient is φ = 84344166000.

The previous prime is 85465658363. The next prime is 85465658389. The reversal of 85465658381 is 18385656458.

It is a happy number.

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 85465658381 - 2²⁶ = 85398549517 is a prime.

It is a super-2 number, since 2×85465658381² (a number of 23 digits) contains 22 as substring.

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 85465658381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85465658389) 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, 1534571 + ... + 1589288.

It is an arithmetic number, because the mean of its divisors is an integer number (10824174900).

Almost surely, 2^85465658381 is an apocalyptic number.

It is an amenable number.

85465658381 is a deficient number, since it is larger than the sum of its proper divisors (1127740819).

85465658381 is a wasteful number, since it uses less digits than its factorization.

85465658381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124219.

The product of its digits is 27648000, while the sum is 59.

The spelling of 85465658381 in words is "eighty-five billion, four hundred sixty-five million, six hundred fifty-eight thousand, three hundred eighty-one".