13770636238 has 4 divisors (see below), whose sum is σ = 20655954360. Its totient is φ = 6885318118.

The previous prime is 13770636221. The next prime is 13770636287. The reversal of 13770636238 is 83263607731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83263607731 = 21143 ⋅3938117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442659058 + ... + 3442659061.

It is an arithmetic number, because the mean of its divisors is an integer number (5163988590).

Almost surely, 2^13770636238 is an apocalyptic number.

13770636238 is a deficient number, since it is larger than the sum of its proper divisors (6885318122).

13770636238 is an equidigital number, since it uses as much as digits as its factorization.

13770636238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885318121.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 13770636238 in words is "thirteen billion, seven hundred seventy million, six hundred thirty-six thousand, two hundred thirty-eight".