864832045381 has 4 divisors (see below), whose sum is σ = 866699933632. Its totient is φ = 862964157132.

The previous prime is 864832045339. The next prime is 864832045391. The reversal of 864832045381 is 183540238468.

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 864832045381 - 2²⁵ = 864798490949 is a prime.

It is a super-2 number, since 2×864832045381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864832045391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933943431 + ... + 933944356.

It is an arithmetic number, because the mean of its divisors is an integer number (216674983408).

Almost surely, 2^864832045381 is an apocalyptic number.

It is an amenable number.

864832045381 is a deficient number, since it is larger than the sum of its proper divisors (1867888251).

864832045381 is a wasteful number, since it uses less digits than its factorization.

864832045381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867888250.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 864832045381 in words is "eight hundred sixty-four billion, eight hundred thirty-two million, forty-five thousand, three hundred eighty-one".