13307777765 has 8 divisors (see below), whose sum is σ = 15984534048. Its totient is φ = 10636088400.

The previous prime is 13307777737. The next prime is 13307777767. The reversal of 13307777765 is 56777770331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13307777765 - 2¹² = 13307773669 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 (13307777767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260947 + ... + 1271456.

It is an arithmetic number, because the mean of its divisors is an integer number (1998066756).

Almost surely, 2^13307777765 is an apocalyptic number.

It is an amenable number.

13307777765 is a deficient number, since it is larger than the sum of its proper divisors (2676756283).

13307777765 is a wasteful number, since it uses less digits than its factorization.

13307777765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533459.

The product of its (nonzero) digits is 4537890, while the sum is 53.

The spelling of 13307777765 in words is "thirteen billion, three hundred seven million, seven hundred seventy-seven thousand, seven hundred sixty-five".