42769640413 has 2 divisors, whose sum is σ = 42769640414. Its totient is φ = 42769640412.

The previous prime is 42769640393. The next prime is 42769640449. The reversal of 42769640413 is 31404696724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22780770489 + 19988869924 = 150933^2 + 141382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42769640413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42769641413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21384820206 + 21384820207.

It is an arithmetic number, because the mean of its divisors is an integer number (21384820207).

Almost surely, 2^42769640413 is an apocalyptic number.

It is an amenable number.

42769640413 is a deficient number, since it is larger than the sum of its proper divisors (1).

42769640413 is an equidigital number, since it uses as much as digits as its factorization.

42769640413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 42769640413 in words is "forty-two billion, seven hundred sixty-nine million, six hundred forty thousand, four hundred thirteen".