43006695381 has 12 divisors (see below), whose sum is σ = 66899304108. Its totient is φ = 26465658624.

The previous prime is 43006695367. The next prime is 43006695437. The reversal of 43006695381 is 18359660034.

It can be written as a sum of positive squares in 2 ways, for example, as 5174500356 + 37832195025 = 71934^2 + 194505^2 .

It is not a de Polignac number, because 43006695381 - 2¹⁸ = 43006433237 is a prime.

It is a super-2 number, since 2×43006695381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43006697381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183789180 + ... + 183789413.

It is an arithmetic number, because the mean of its divisors is an integer number (5574942009).

Almost surely, 2^43006695381 is an apocalyptic number.

It is an amenable number.

43006695381 is a deficient number, since it is larger than the sum of its proper divisors (23892608727).

43006695381 is a wasteful number, since it uses less digits than its factorization.

43006695381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367578612 (or 367578609 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 43006695381 in words is "forty-three billion, six million, six hundred ninety-five thousand, three hundred eighty-one".