40161386013243 has 64 divisors (see below), whose sum is σ = 61935877946880. Its totient is φ = 22916230937600.

The previous prime is 40161386013143. The next prime is 40161386013317. The reversal of 40161386013243 is 34231068316104.

It is not a de Polignac number, because 40161386013243 - 2⁹ = 40161386012731 is a prime.

It is a super-3 number, since 3×40161386013243³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 40161386013195 and 40161386013204.

It is not an unprimeable number, because it can be changed into a prime (40161386013143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78336205 + ... + 78847217.

It is an arithmetic number, because the mean of its divisors is an integer number (967748092920).

Almost surely, 2^{40161386013243} is an apocalyptic number.

40161386013243 is a deficient number, since it is larger than the sum of its proper divisors (21774491933637).

40161386013243 is a wasteful number, since it uses less digits than its factorization.

40161386013243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513100.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 40161386013243 in words is "forty trillion, one hundred sixty-one billion, three hundred eighty-six million, thirteen thousand, two hundred forty-three".