40138167824 has 20 divisors (see below), whose sum is σ = 77972903760. Its totient is φ = 20016128160.

The previous prime is 40138167803. The next prime is 40138167829. The reversal of 40138167824 is 42876183104.

It is a super-2 number, since 2×40138167824² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40138167829) 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, 3303482 + ... + 3315609.

It is an arithmetic number, because the mean of its divisors is an integer number (3898645188).

Almost surely, 2^40138167824 is an apocalyptic number.

It is an amenable number.

40138167824 is a deficient number, since it is larger than the sum of its proper divisors (37834735936).

40138167824 is a wasteful number, since it uses less digits than its factorization.

40138167824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619478 (or 6619472 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 40138167824 in words is "forty billion, one hundred thirty-eight million, one hundred sixty-seven thousand, eight hundred twenty-four".