42676777072109 has 2 divisors, whose sum is σ = 42676777072110. Its totient is φ = 42676777072108.

The previous prime is 42676777072093. The next prime is 42676777072187. The reversal of 42676777072109 is 90127077767624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37925619590884 + 4751157481225 = 6158378^2 + 2179715^2 .

It is a cyclic number.

It is not a de Polignac number, because 42676777072109 - 2⁴ = 42676777072093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42676777071109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21338388536054 + 21338388536055.

It is an arithmetic number, because the mean of its divisors is an integer number (21338388536055).

Almost surely, 2^{42676777072109} is an apocalyptic number.

It is an amenable number.

42676777072109 is a deficient number, since it is larger than the sum of its proper divisors (1).

42676777072109 is an equidigital number, since it uses as much as digits as its factorization.

42676777072109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87127488, while the sum is 65.

The spelling of 42676777072109 in words is "forty-two trillion, six hundred seventy-six billion, seven hundred seventy-seven million, seventy-two thousand, one hundred nine".