38228183557 has 2 divisors, whose sum is σ = 38228183558. Its totient is φ = 38228183556.

The previous prime is 38228183453. The next prime is 38228183579. The reversal of 38228183557 is 75538182283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32787793476 + 5440390081 = 181074^2 + 73759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38228183557 is a prime.

It is a super-2 number, since 2×38228183557² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38228183057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19114091778 + 19114091779.

It is an arithmetic number, because the mean of its divisors is an integer number (19114091779).

Almost surely, 2^38228183557 is an apocalyptic number.

It is an amenable number.

38228183557 is a deficient number, since it is larger than the sum of its proper divisors (1).

38228183557 is an equidigital number, since it uses as much as digits as its factorization.

38228183557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 52.

The spelling of 38228183557 in words is "thirty-eight billion, two hundred twenty-eight million, one hundred eighty-three thousand, five hundred fifty-seven".