40148838179 has 4 divisors (see below), whose sum is σ = 40149311400. Its totient is φ = 40148364960.

The previous prime is 40148838167. The next prime is 40148838187. The reversal of 40148838179 is 97183884104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40148838179 - 2¹² = 40148834083 is a prime.

It is a super-2 number, since 2×40148838179² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40148838179.

It is not an unprimeable number, because it can be changed into a prime (40148838109) 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 3 ways as a sum of consecutive naturals, for example, 70454 + ... + 291995.

It is an arithmetic number, because the mean of its divisors is an integer number (10037327850).

Almost surely, 2^40148838179 is an apocalyptic number.

40148838179 is a deficient number, since it is larger than the sum of its proper divisors (473221).

40148838179 is a wasteful number, since it uses less digits than its factorization.

40148838179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473220.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 40148838179 in words is "forty billion, one hundred forty-eight million, eight hundred thirty-eight thousand, one hundred seventy-nine".