13433438077 has 4 divisors (see below), whose sum is σ = 13501628316. Its totient is φ = 13365247840.

The previous prime is 13433438023. The next prime is 13433438089. The reversal of 13433438077 is 77083433431.

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 8026188921 + 5407249156 = 89589^2 + 73534^2 .

It is a cyclic number.

It is not a de Polignac number, because 13433438077 - 2³¹ = 11285954429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13433438677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34094824 + ... + 34095217.

It is an arithmetic number, because the mean of its divisors is an integer number (3375407079).

Almost surely, 2^13433438077 is an apocalyptic number.

It is an amenable number.

13433438077 is a deficient number, since it is larger than the sum of its proper divisors (68190239).

13433438077 is an equidigital number, since it uses as much as digits as its factorization.

13433438077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68190238.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 13433438077 in words is "thirteen billion, four hundred thirty-three million, four hundred thirty-eight thousand, seventy-seven".