40124143349 has 2 divisors, whose sum is σ = 40124143350. Its totient is φ = 40124143348.

The previous prime is 40124143313. The next prime is 40124143357. The reversal of 40124143349 is 94334142104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39990000625 + 134142724 = 199975^2 + 11582^2 .

It is a cyclic number.

It is not a de Polignac number, because 40124143349 - 2²⁰ = 40123094773 is a prime.

It is a super-2 number, since 2×40124143349² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40124143369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20062071674 + 20062071675.

It is an arithmetic number, because the mean of its divisors is an integer number (20062071675).

Almost surely, 2^40124143349 is an apocalyptic number.

It is an amenable number.

40124143349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40124143349 is an equidigital number, since it uses as much as digits as its factorization.

40124143349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 40124143349 in words is "forty billion, one hundred twenty-four million, one hundred forty-three thousand, three hundred forty-nine".