137889133427 has 2 divisors, whose sum is σ = 137889133428. Its totient is φ = 137889133426.

The previous prime is 137889133379. The next prime is 137889133471. The reversal of 137889133427 is 724331988731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137889133427 - 2⁶ = 137889133363 is a prime.

It is not a weakly prime, because it can be changed into another prime (137889132427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68944566713 + 68944566714.

It is an arithmetic number, because the mean of its divisors is an integer number (68944566714).

Almost surely, 2^137889133427 is an apocalyptic number.

137889133427 is a deficient number, since it is larger than the sum of its proper divisors (1).

137889133427 is an equidigital number, since it uses as much as digits as its factorization.

137889133427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 56.

The spelling of 137889133427 in words is "one hundred thirty-seven billion, eight hundred eighty-nine million, one hundred thirty-three thousand, four hundred twenty-seven".