38016775457 has 2 divisors, whose sum is σ = 38016775458. Its totient is φ = 38016775456.

The previous prime is 38016775409. The next prime is 38016775481. The reversal of 38016775457 is 75457761083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37878501376 + 138274081 = 194624^2 + 11759^2 .

It is a cyclic number.

It is not a de Polignac number, because 38016775457 - 2²⁴ = 37999998241 is a prime.

It is a super-2 number, since 2×38016775457² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38016775399 and 38016775408.

It is not a weakly prime, because it can be changed into another prime (38016775957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19008387728 + 19008387729.

It is an arithmetic number, because the mean of its divisors is an integer number (19008387729).

Almost surely, 2^38016775457 is an apocalyptic number.

It is an amenable number.

38016775457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38016775457 is an equidigital number, since it uses as much as digits as its factorization.

38016775457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 38016775457 in words is "thirty-eight billion, sixteen million, seven hundred seventy-five thousand, four hundred fifty-seven".