77433270013 has 4 divisors (see below), whose sum is σ = 84472658208. Its totient is φ = 70393881820.

The previous prime is 77433269993. The next prime is 77433270041. The reversal of 77433270013 is 31007233477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77433270013 is a prime.

It is a super-2 number, since 2×77433270013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77433270043) 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, 3519694081 + ... + 3519694102.

It is an arithmetic number, because the mean of its divisors is an integer number (21118164552).

Almost surely, 2^77433270013 is an apocalyptic number.

It is an amenable number.

77433270013 is a deficient number, since it is larger than the sum of its proper divisors (7039388195).

77433270013 is a wasteful number, since it uses less digits than its factorization.

77433270013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039388194.

The product of its (nonzero) digits is 74088, while the sum is 37.

The spelling of 77433270013 in words is "seventy-seven billion, four hundred thirty-three million, two hundred seventy thousand, thirteen".