137638889111 has 2 divisors, whose sum is σ = 137638889112. Its totient is φ = 137638889110.

The previous prime is 137638888997. The next prime is 137638889147. The reversal of 137638889111 is 111988836731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137638889111 - 2¹⁴ = 137638872727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137638889711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68819444555 + 68819444556.

It is an arithmetic number, because the mean of its divisors is an integer number (68819444556).

Almost surely, 2^137638889111 is an apocalyptic number.

137638889111 is a deficient number, since it is larger than the sum of its proper divisors (1).

137638889111 is an equidigital number, since it uses as much as digits as its factorization.

137638889111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The spelling of 137638889111 in words is "one hundred thirty-seven billion, six hundred thirty-eight million, eight hundred eighty-nine thousand, one hundred eleven".