137026548649 has 2 divisors, whose sum is σ = 137026548650. Its totient is φ = 137026548648.

The previous prime is 137026548611. The next prime is 137026548653. The reversal of 137026548649 is 946845620731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121741677225 + 15284871424 = 348915^2 + 123632^2 .

It is a cyclic number.

It is not a de Polignac number, because 137026548649 - 2²⁷ = 136892330921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137026548649.

It is not a weakly prime, because it can be changed into another prime (137026548749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68513274324 + 68513274325.

It is an arithmetic number, because the mean of its divisors is an integer number (68513274325).

It is a 1-persistent number, because it is pandigital, but 2⋅137026548649 = 274053097298 is not.

Almost surely, 2^137026548649 is an apocalyptic number.

It is an amenable number.

137026548649 is a deficient number, since it is larger than the sum of its proper divisors (1).

137026548649 is an equidigital number, since it uses as much as digits as its factorization.

137026548649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 137026548649 in words is "one hundred thirty-seven billion, twenty-six million, five hundred forty-eight thousand, six hundred forty-nine".