42501775044277 has 2 divisors, whose sum is σ = 42501775044278. Its totient is φ = 42501775044276.

The previous prime is 42501775044271. The next prime is 42501775044317. The reversal of 42501775044277 is 77244057710524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22318311299076 + 20183463745201 = 4724226^2 + 4492601^2 .

It is a cyclic number.

It is not a de Polignac number, because 42501775044277 - 2⁷ = 42501775044149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42501775044271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250887522138 + 21250887522139.

It is an arithmetic number, because the mean of its divisors is an integer number (21250887522139).

Almost surely, 2^{42501775044277} is an apocalyptic number.

It is an amenable number.

42501775044277 is a deficient number, since it is larger than the sum of its proper divisors (1).

42501775044277 is an equidigital number, since it uses as much as digits as its factorization.

42501775044277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15366400, while the sum is 55.

The spelling of 42501775044277 in words is "forty-two trillion, five hundred one billion, seven hundred seventy-five million, forty-four thousand, two hundred seventy-seven".