64204626553 has 2 divisors, whose sum is σ = 64204626554. Its totient is φ = 64204626552.

The previous prime is 64204626509. The next prime is 64204626559. The reversal of 64204626553 is 35562640246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60266813049 + 3937813504 = 245493^2 + 62752^2 .

It is a cyclic number.

It is not a de Polignac number, because 64204626553 - 2⁹ = 64204626041 is a prime.

It is not a weakly prime, because it can be changed into another prime (64204626559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32102313276 + 32102313277.

It is an arithmetic number, because the mean of its divisors is an integer number (32102313277).

Almost surely, 2^64204626553 is an apocalyptic number.

It is an amenable number.

64204626553 is a deficient number, since it is larger than the sum of its proper divisors (1).

64204626553 is an equidigital number, since it uses as much as digits as its factorization.

64204626553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 64204626553 in words is "sixty-four billion, two hundred four million, six hundred twenty-six thousand, five hundred fifty-three".