42475142077 has 2 divisors, whose sum is σ = 42475142078. Its totient is φ = 42475142076.

The previous prime is 42475142023. The next prime is 42475142089. The reversal of 42475142077 is 77024157424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39557629881 + 2917512196 = 198891^2 + 54014^2 .

It is a cyclic number.

It is not a de Polignac number, because 42475142077 - 2²⁷ = 42340924349 is a prime.

It is a super-2 number, since 2×42475142077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42475142477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21237571038 + 21237571039.

It is an arithmetic number, because the mean of its divisors is an integer number (21237571039).

Almost surely, 2^42475142077 is an apocalyptic number.

It is an amenable number.

42475142077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42475142077 is an equidigital number, since it uses as much as digits as its factorization.

42475142077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 439040, while the sum is 43.

The spelling of 42475142077 in words is "forty-two billion, four hundred seventy-five million, one hundred forty-two thousand, seventy-seven".