40973698181 has 8 divisors (see below), whose sum is σ = 44129762040. Its totient is φ = 37818240192.

The previous prime is 40973698121. The next prime is 40973698217. The reversal of 40973698181 is 18189637904.

It can be written as a sum of positive squares in 4 ways, for example, as 1865956 + 40971832225 = 1366^2 + 202415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40973698181 - 2¹⁸ = 40973436037 is a prime.

It is a super-2 number, since 2×40973698181² (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 (40973698121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5810 + ... + 286323.

It is an arithmetic number, because the mean of its divisors is an integer number (5516220255).

Almost surely, 2^40973698181 is an apocalyptic number.

It is an amenable number.

40973698181 is a deficient number, since it is larger than the sum of its proper divisors (3156063859).

40973698181 is a wasteful number, since it uses less digits than its factorization.

40973698181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302935.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 40973698181 in words is "forty billion, nine hundred seventy-three million, six hundred ninety-eight thousand, one hundred eighty-one".