38720294233 has 2 divisors, whose sum is σ = 38720294234. Its totient is φ = 38720294232.

The previous prime is 38720294231. The next prime is 38720294287. The reversal of 38720294233 is 33249202783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32029545024 + 6690749209 = 178968^2 + 81797^2 .

It is a cyclic number.

It is not a de Polignac number, because 38720294233 - 2¹ = 38720294231 is a prime.

It is a super-2 number, since 2×38720294233² (a number of 22 digits) contains 22 as substring.

Together with 38720294231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 38720294233.

It is not a weakly prime, because it can be changed into another prime (38720294231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19360147116 + 19360147117.

It is an arithmetic number, because the mean of its divisors is an integer number (19360147117).

Almost surely, 2^38720294233 is an apocalyptic number.

It is an amenable number.

38720294233 is a deficient number, since it is larger than the sum of its proper divisors (1).

38720294233 is an equidigital number, since it uses as much as digits as its factorization.

38720294233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 38720294233 in words is "thirty-eight billion, seven hundred twenty million, two hundred ninety-four thousand, two hundred thirty-three".