38555007641 has 2 divisors, whose sum is σ = 38555007642. Its totient is φ = 38555007640.

The previous prime is 38555007619. The next prime is 38555007661. The reversal of 38555007641 is 14670055583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29682121225 + 8872886416 = 172285^2 + 94196^2 .

It is a cyclic number.

It is not a de Polignac number, because 38555007641 - 2⁶ = 38555007577 is a prime.

It is a super-2 number, since 2×38555007641² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38555007592 and 38555007601.

It is not a weakly prime, because it can be changed into another prime (38555007661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19277503820 + 19277503821.

It is an arithmetic number, because the mean of its divisors is an integer number (19277503821).

Almost surely, 2^38555007641 is an apocalyptic number.

It is an amenable number.

38555007641 is a deficient number, since it is larger than the sum of its proper divisors (1).

38555007641 is an equidigital number, since it uses as much as digits as its factorization.

38555007641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 38555007641 in words is "thirty-eight billion, five hundred fifty-five million, seven thousand, six hundred forty-one".