38434432633 has 2 divisors, whose sum is σ = 38434432634. Its totient is φ = 38434432632.

The previous prime is 38434432607. The next prime is 38434432649. The reversal of 38434432633 is 33623443483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21699646864 + 16734785769 = 147308^2 + 129363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38434432633 is a prime.

It is a super-2 number, since 2×38434432633² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38434432633.

It is not a weakly prime, because it can be changed into another prime (38434432733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19217216316 + 19217216317.

It is an arithmetic number, because the mean of its divisors is an integer number (19217216317).

Almost surely, 2^38434432633 is an apocalyptic number.

It is an amenable number.

38434432633 is a deficient number, since it is larger than the sum of its proper divisors (1).

38434432633 is an equidigital number, since it uses as much as digits as its factorization.

38434432633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 43.

The spelling of 38434432633 in words is "thirty-eight billion, four hundred thirty-four million, four hundred thirty-two thousand, six hundred thirty-three".