213738177307 has 4 divisors (see below), whose sum is σ = 224987555080. Its totient is φ = 202488799536.

The previous prime is 213738177287. The next prime is 213738177403. The reversal of 213738177307 is 703771837312.

It is a happy number.

213738177307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213738177307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213738178307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5624688858 + ... + 5624688895.

It is an arithmetic number, because the mean of its divisors is an integer number (56246888770).

Almost surely, 2^213738177307 is an apocalyptic number.

213738177307 is a deficient number, since it is larger than the sum of its proper divisors (11249377773).

213738177307 is a wasteful number, since it uses less digits than its factorization.

213738177307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11249377772.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 213738177307 in words is "two hundred thirteen billion, seven hundred thirty-eight million, one hundred seventy-seven thousand, three hundred seven".