38664753553 has 2 divisors, whose sum is σ = 38664753554. Its totient is φ = 38664753552.

The previous prime is 38664753521. The next prime is 38664753587. The reversal of 38664753553 is 35535746683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29815964929 + 8848788624 = 172673^2 + 94068^2 .

It is a cyclic number.

It is not a de Polignac number, because 38664753553 - 2⁵ = 38664753521 is a prime.

It is a super-2 number, since 2×38664753553² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38664753494 and 38664753503.

It is not a weakly prime, because it can be changed into another prime (38664723553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19332376776 + 19332376777.

It is an arithmetic number, because the mean of its divisors is an integer number (19332376777).

Almost surely, 2^38664753553 is an apocalyptic number.

It is an amenable number.

38664753553 is a deficient number, since it is larger than the sum of its proper divisors (1).

38664753553 is an equidigital number, since it uses as much as digits as its factorization.

38664753553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216000, while the sum is 55.

The spelling of 38664753553 in words is "thirty-eight billion, six hundred sixty-four million, seven hundred fifty-three thousand, five hundred fifty-three".