42794049769 has 2 divisors, whose sum is σ = 42794049770. Its totient is φ = 42794049768.

The previous prime is 42794049719. The next prime is 42794049797. The reversal of 42794049769 is 96794049724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25884948544 + 16909101225 = 160888^2 + 130035^2 .

It is a cyclic number.

It is not a de Polignac number, because 42794049769 - 2⁹ = 42794049257 is a prime.

It is a super-2 number, since 2×42794049769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42794049709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21397024884 + 21397024885.

It is an arithmetic number, because the mean of its divisors is an integer number (21397024885).

Almost surely, 2^42794049769 is an apocalyptic number.

It is an amenable number.

42794049769 is a deficient number, since it is larger than the sum of its proper divisors (1).

42794049769 is an equidigital number, since it uses as much as digits as its factorization.

42794049769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 42794049769 in words is "forty-two billion, seven hundred ninety-four million, forty-nine thousand, seven hundred sixty-nine".