864133229377 has 72 divisors (see below), whose sum is σ = 1027580335488. Its totient is φ = 725697023040.

The previous prime is 864133229347. The next prime is 864133229413. The reversal of 864133229377 is 773922331468.

It is a happy number.

It is not a de Polignac number, because 864133229377 - 2¹⁵ = 864133196609 is a prime.

It is a super-2 number, since 2×864133229377² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (864133229347) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 712392823 + ... + 712394035.

It is an arithmetic number, because the mean of its divisors is an integer number (14271949104).

Almost surely, 2^864133229377 is an apocalyptic number.

It is an amenable number.

864133229377 is a deficient number, since it is larger than the sum of its proper divisors (163447106111).

864133229377 is a wasteful number, since it uses less digits than its factorization.

864133229377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1637 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 55.

The spelling of 864133229377 in words is "eight hundred sixty-four billion, one hundred thirty-three million, two hundred twenty-nine thousand, three hundred seventy-seven".