8664701381 has 16 divisors (see below), whose sum is σ = 10366777344. Its totient is φ = 7080798384.

The previous prime is 8664701377. The next prime is 8664701393. The reversal of 8664701381 is 1831074668.

It is a cyclic number.

It is not a de Polignac number, because 8664701381 - 2² = 8664701377 is a prime.

It is a super-2 number, since 2×8664701381² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8664701341) 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, 38225 + ... + 137078.

It is an arithmetic number, because the mean of its divisors is an integer number (647923584).

Almost surely, 2^8664701381 is an apocalyptic number.

It is an amenable number.

8664701381 is a deficient number, since it is larger than the sum of its proper divisors (1702075963).

8664701381 is a wasteful number, since it uses less digits than its factorization.

8664701381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175640.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 8664701381 is about 93084.3777494376. The cubic root of 8664701381 is about 2053.9247738937.

The spelling of 8664701381 in words is "eight billion, six hundred sixty-four million, seven hundred one thousand, three hundred eighty-one".