635067979423 has 2 divisors, whose sum is σ = 635067979424. Its totient is φ = 635067979422.

The previous prime is 635067979393. The next prime is 635067979487. The reversal of 635067979423 is 324979760536.

635067979423 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 is a cyclic number.

It is not a de Polignac number, because 635067979423 - 2²⁹ = 634531108511 is a prime.

It is a super-2 number, since 2×635067979423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635067979123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317533989711 + 317533989712.

It is an arithmetic number, because the mean of its divisors is an integer number (317533989712).

Almost surely, 2^635067979423 is an apocalyptic number.

635067979423 is a deficient number, since it is larger than the sum of its proper divisors (1).

635067979423 is an equidigital number, since it uses as much as digits as its factorization.

635067979423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51438240, while the sum is 61.

The spelling of 635067979423 in words is "six hundred thirty-five billion, sixty-seven million, nine hundred seventy-nine thousand, four hundred twenty-three".