42667918129 has 4 divisors (see below), whose sum is σ = 45177795684. Its totient is φ = 40158040576.

The previous prime is 42667918099. The next prime is 42667918159. The reversal of 42667918129 is 92181976624.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42667918099) and next prime (42667918159).

It can be written as a sum of positive squares in 2 ways, for example, as 38488554225 + 4179363904 = 196185^2 + 64648^2 .

It is a cyclic number.

It is not a de Polignac number, because 42667918129 - 2¹⁵ = 42667885361 is a prime.

It is a super-3 number, since 3×42667918129³ (a number of 33 digits) contains 333 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 42667918129.

It is not an unprimeable number, because it can be changed into a prime (42667918159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254938752 + ... + 1254938785.

It is an arithmetic number, because the mean of its divisors is an integer number (11294448921).

Almost surely, 2^42667918129 is an apocalyptic number.

It is an amenable number.

42667918129 is a deficient number, since it is larger than the sum of its proper divisors (2509877555).

42667918129 is a wasteful number, since it uses less digits than its factorization.

42667918129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509877554.

The product of its digits is 2612736, while the sum is 55.

The spelling of 42667918129 in words is "forty-two billion, six hundred sixty-seven million, nine hundred eighteen thousand, one hundred twenty-nine".