134564680637 has 2 divisors, whose sum is σ = 134564680638. Its totient is φ = 134564680636.

The previous prime is 134564680501. The next prime is 134564680643. The reversal of 134564680637 is 736086465431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116043103801 + 18521576836 = 340651^2 + 136094^2 .

It is a cyclic number.

It is not a de Polignac number, because 134564680637 - 2¹² = 134564676541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134564680037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67282340318 + 67282340319.

It is an arithmetic number, because the mean of its divisors is an integer number (67282340319).

Almost surely, 2^134564680637 is an apocalyptic number.

It is an amenable number.

134564680637 is a deficient number, since it is larger than the sum of its proper divisors (1).

134564680637 is an equidigital number, since it uses as much as digits as its factorization.

134564680637 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 53.

The spelling of 134564680637 in words is "one hundred thirty-four billion, five hundred sixty-four million, six hundred eighty thousand, six hundred thirty-seven".