85352143381 has 16 divisors (see below), whose sum is σ = 88220233728. Its totient is φ = 82525388400.

The previous prime is 85352143379. The next prime is 85352143417. The reversal of 85352143381 is 18334125358.

It is a cyclic number.

It is not a de Polignac number, because 85352143381 - 2¹ = 85352143379 is a prime.

It is a super-2 number, since 2×85352143381² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85352143361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761766 + ... + 6774376.

It is an arithmetic number, because the mean of its divisors is an integer number (5513764608).

Almost surely, 2^85352143381 is an apocalyptic number.

It is an amenable number.

85352143381 is a deficient number, since it is larger than the sum of its proper divisors (2868090347).

85352143381 is a wasteful number, since it uses less digits than its factorization.

85352143381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232.

The product of its digits is 345600, while the sum is 43.

The spelling of 85352143381 in words is "eighty-five billion, three hundred fifty-two million, one hundred forty-three thousand, three hundred eighty-one".