42998264077 has 2 divisors, whose sum is σ = 42998264078. Its totient is φ = 42998264076.

The previous prime is 42998264009. The next prime is 42998264131. The reversal of 42998264077 is 77046289924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42153838596 + 844425481 = 205314^2 + 29059^2 .

It is a cyclic number.

It is not a de Polignac number, because 42998264077 - 2²³ = 42989875469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42998264377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21499132038 + 21499132039.

It is an arithmetic number, because the mean of its divisors is an integer number (21499132039).

Almost surely, 2^42998264077 is an apocalyptic number.

It is an amenable number.

42998264077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42998264077 is an equidigital number, since it uses as much as digits as its factorization.

42998264077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 42998264077 in words is "forty-two billion, nine hundred ninety-eight million, two hundred sixty-four thousand, seventy-seven".