42143162977 has 2 divisors, whose sum is σ = 42143162978. Its totient is φ = 42143162976.

The previous prime is 42143162813. The next prime is 42143162987. The reversal of 42143162977 is 77926134124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42107450401 + 35712576 = 205201^2 + 5976^2 .

It is a cyclic number.

It is not a de Polignac number, because 42143162977 - 2²⁷ = 42008945249 is a prime.

It is not a weakly prime, because it can be changed into another prime (42143162987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071581488 + 21071581489.

It is an arithmetic number, because the mean of its divisors is an integer number (21071581489).

Almost surely, 2^42143162977 is an apocalyptic number.

It is an amenable number.

42143162977 is a deficient number, since it is larger than the sum of its proper divisors (1).

42143162977 is an equidigital number, since it uses as much as digits as its factorization.

42143162977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

It can be divided in two parts, 42143 and 162977, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 42143162977 in words is "forty-two billion, one hundred forty-three million, one hundred sixty-two thousand, nine hundred seventy-seven".