53662172436673 has 2 divisors, whose sum is σ = 53662172436674. Its totient is φ = 53662172436672.

The previous prime is 53662172436623. The next prime is 53662172436701. The reversal of 53662172436673 is 37663427126635.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52956359060544 + 705813376129 = 7277112^2 + 840127^2 .

It is a cyclic number.

It is not a de Polignac number, because 53662172436673 - 2¹³ = 53662172428481 is a prime.

It is not a weakly prime, because it can be changed into another prime (53662172436623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831086218336 + 26831086218337.

It is an arithmetic number, because the mean of its divisors is an integer number (26831086218337).

Almost surely, 2^{53662172436673} is an apocalyptic number.

It is an amenable number.

53662172436673 is a deficient number, since it is larger than the sum of its proper divisors (1).

53662172436673 is an equidigital number, since it uses as much as digits as its factorization.

53662172436673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137168640, while the sum is 61.

The spelling of 53662172436673 in words is "fifty-three trillion, six hundred sixty-two billion, one hundred seventy-two million, four hundred thirty-six thousand, six hundred seventy-three".