42437399077 has 2 divisors, whose sum is σ = 42437399078. Its totient is φ = 42437399076.

The previous prime is 42437399071. The next prime is 42437399089. The reversal of 42437399077 is 77099373424.

42437399077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37122114241 + 5315284836 = 192671^2 + 72906^2 .

It is a cyclic number.

It is not a de Polignac number, because 42437399077 - 2²³ = 42429010469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437399071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218699538 + 21218699539.

It is an arithmetic number, because the mean of its divisors is an integer number (21218699539).

Almost surely, 2^42437399077 is an apocalyptic number.

It is an amenable number.

42437399077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437399077 is an equidigital number, since it uses as much as digits as its factorization.

42437399077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 55.

The spelling of 42437399077 in words is "forty-two billion, four hundred thirty-seven million, three hundred ninety-nine thousand, seventy-seven".