137628893929 has 2 divisors, whose sum is σ = 137628893930. Its totient is φ = 137628893928.

The previous prime is 137628893923. The next prime is 137628894031. The reversal of 137628893929 is 929398826731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136790501904 + 838392025 = 369852^2 + 28955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137628893929 is a prime.

It is not a weakly prime, because it can be changed into another prime (137628893923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68814446964 + 68814446965.

It is an arithmetic number, because the mean of its divisors is an integer number (68814446965).

Almost surely, 2^137628893929 is an apocalyptic number.

It is an amenable number.

137628893929 is a deficient number, since it is larger than the sum of its proper divisors (1).

137628893929 is an equidigital number, since it uses as much as digits as its factorization.

137628893929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 67.

The spelling of 137628893929 in words is "one hundred thirty-seven billion, six hundred twenty-eight million, eight hundred ninety-three thousand, nine hundred twenty-nine".