40009087389129 has 4 divisors (see below), whose sum is σ = 53345449852176. Its totient is φ = 26672724926084.

The previous prime is 40009087389121. The next prime is 40009087389133. The reversal of 40009087389129 is 92198378090004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40009087389129 - 2³ = 40009087389121 is a prime.

It is a super-2 number, since 2×40009087389129² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40009087389121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6668181231519 + ... + 6668181231524.

It is an arithmetic number, because the mean of its divisors is an integer number (13336362463044).

Almost surely, 2^{40009087389129} is an apocalyptic number.

It is an amenable number.

40009087389129 is a deficient number, since it is larger than the sum of its proper divisors (13336362463047).

40009087389129 is a wasteful number, since it uses less digits than its factorization.

40009087389129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336362463046.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 40009087389129 in words is "forty trillion, nine billion, eighty-seven million, three hundred eighty-nine thousand, one hundred twenty-nine".