42992401745 has 4 divisors (see below), whose sum is σ = 51590882100. Its totient is φ = 34393921392.

The previous prime is 42992401693. The next prime is 42992401747. The reversal of 42992401745 is 54710429924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28366643776 + 14625757969 = 168424^2 + 120937^2 .

It is a cyclic number.

It is not a de Polignac number, because 42992401745 - 2¹⁰ = 42992400721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42992401745.

It is not an unprimeable number, because it can be changed into a prime (42992401747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4299240170 + ... + 4299240179.

It is an arithmetic number, because the mean of its divisors is an integer number (12897720525).

Almost surely, 2^42992401745 is an apocalyptic number.

It is an amenable number.

42992401745 is a deficient number, since it is larger than the sum of its proper divisors (8598480355).

42992401745 is an equidigital number, since it uses as much as digits as its factorization.

42992401745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8598480354.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 42992401745 in words is "forty-two billion, nine hundred ninety-two million, four hundred one thousand, seven hundred forty-five".