40134825356858 has 4 divisors (see below), whose sum is σ = 60202238035290. Its totient is φ = 20067412678428.

The previous prime is 40134825356851. The next prime is 40134825356863. The reversal of 40134825356858 is 85865352843104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40037851037209 + 96974319649 = 6327547^2 + 311407^2 .

It is a super-2 number, since 2×40134825356858² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40134825356858.

It is not an unprimeable number, because it can be changed into a prime (40134825356851) 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 as a sum of consecutive naturals, namely, 10033706339213 + ... + 10033706339216.

Almost surely, 2^{40134825356858} is an apocalyptic number.

40134825356858 is a deficient number, since it is larger than the sum of its proper divisors (20067412678432).

40134825356858 is a wasteful number, since it uses less digits than its factorization.

40134825356858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20067412678431.

The product of its (nonzero) digits is 110592000, while the sum is 62.

The spelling of 40134825356858 in words is "forty trillion, one hundred thirty-four billion, eight hundred twenty-five million, three hundred fifty-six thousand, eight hundred fifty-eight".