42512450677 has 2 divisors, whose sum is σ = 42512450678. Its totient is φ = 42512450676.

The previous prime is 42512450641. The next prime is 42512450711. The reversal of 42512450677 is 77605421524.

42512450677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40768051921 + 1744398756 = 201911^2 + 41766^2 .

It is a cyclic number.

It is not a de Polignac number, because 42512450677 - 2⁷ = 42512450549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42512451677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21256225338 + 21256225339.

It is an arithmetic number, because the mean of its divisors is an integer number (21256225339).

Almost surely, 2^42512450677 is an apocalyptic number.

It is an amenable number.

42512450677 is a deficient number, since it is larger than the sum of its proper divisors (1).

42512450677 is an equidigital number, since it uses as much as digits as its factorization.

42512450677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 42512450677 in words is "forty-two billion, five hundred twelve million, four hundred fifty thousand, six hundred seventy-seven".