40135824913 has 2 divisors, whose sum is σ = 40135824914. Its totient is φ = 40135824912.

The previous prime is 40135824907. The next prime is 40135824973. The reversal of 40135824913 is 31942853104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27261972544 + 12873852369 = 165112^2 + 113463^2 .

It is a cyclic number.

It is not a de Polignac number, because 40135824913 - 2⁵ = 40135824881 is a prime.

It is a super-2 number, since 2×40135824913² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40135824973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20067912456 + 20067912457.

It is an arithmetic number, because the mean of its divisors is an integer number (20067912457).

Almost surely, 2^40135824913 is an apocalyptic number.

It is an amenable number.

40135824913 is a deficient number, since it is larger than the sum of its proper divisors (1).

40135824913 is an equidigital number, since it uses as much as digits as its factorization.

40135824913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 40135824913 in words is "forty billion, one hundred thirty-five million, eight hundred twenty-four thousand, nine hundred thirteen".