864346146044 has 12 divisors (see below), whose sum is σ = 1512635036304. Its totient is φ = 432164707104.

The previous prime is 864346146019. The next prime is 864346146091. The reversal of 864346146044 is 440641643468.

It is a happy number.

It is a super-2 number, since 2×864346146044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864346145983 and 864346146001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856072 + ... + 2274575.

It is an arithmetic number, because the mean of its divisors is an integer number (126052919692).

Almost surely, 2^864346146044 is an apocalyptic number.

It is an amenable number.

864346146044 is a deficient number, since it is larger than the sum of its proper divisors (648288890260).

864346146044 is a wasteful number, since it uses less digits than its factorization.

864346146044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182964 (or 4182962 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 864346146044 in words is "eight hundred sixty-four billion, three hundred forty-six million, one hundred forty-six thousand, forty-four".