38652721411537 has 2 divisors, whose sum is σ = 38652721411538. Its totient is φ = 38652721411536.

The previous prime is 38652721411501. The next prime is 38652721411553. The reversal of 38652721411537 is 73511412725683.

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., 37705445506576 + 947275904961 = 6140476^2 + 973281^2 .

It is a cyclic number.

It is not a de Polignac number, because 38652721411537 - 2²³ = 38652713022929 is a prime.

It is a super-3 number, since 3×38652721411537³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (38652721411037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19326360705768 + 19326360705769.

It is an arithmetic number, because the mean of its divisors is an integer number (19326360705769).

Almost surely, 2^{38652721411537} is an apocalyptic number.

It is an amenable number.

38652721411537 is a deficient number, since it is larger than the sum of its proper divisors (1).

38652721411537 is an equidigital number, since it uses as much as digits as its factorization.

38652721411537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 55.

The spelling of 38652721411537 in words is "thirty-eight trillion, six hundred fifty-two billion, seven hundred twenty-one million, four hundred eleven thousand, five hundred thirty-seven".