42377815712389 has 2 divisors, whose sum is σ = 42377815712390. Its totient is φ = 42377815712388.

The previous prime is 42377815712381. The next prime is 42377815712411. The reversal of 42377815712389 is 98321751877324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41760675062500 + 617140649889 = 6462250^2 + 785583^2 .

It is a cyclic number.

It is not a de Polignac number, because 42377815712389 - 2³ = 42377815712381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42377815712381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21188907856194 + 21188907856195.

It is an arithmetic number, because the mean of its divisors is an integer number (21188907856195).

Almost surely, 2^{42377815712389} is an apocalyptic number.

It is an amenable number.

42377815712389 is a deficient number, since it is larger than the sum of its proper divisors (1).

42377815712389 is an equidigital number, since it uses as much as digits as its factorization.

42377815712389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142248960, while the sum is 67.

The spelling of 42377815712389 in words is "forty-two trillion, three hundred seventy-seven billion, eight hundred fifteen million, seven hundred twelve thousand, three hundred eighty-nine".